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전자파 안전정보 용어 1

by 리치캣 2022. 9. 28.

전자파 안전정보 용어 1

no 용어명 설명 출처
1 anisotropic medium A medium that is not isotropic, i.e., whose constitutive parameters depend on the polarization and direction of wave propagation of the electric and magnetic fields. IEEE Std. 211-1997
2 anthropomorphic model A model having a human-like form or attributes. IEEE Std. 1528-2003, 편찬 위원
3 average emitted power The average emitted power is the time-averaged rate of energy transfer EN 50400
4 averaging time The averaging time is the appropriate time period over which exposure is averaged for purposes of determining compliance with the limits. ITU K.52
5 averaging volume The volume over which the peak spatial-average specific absorption rate is averaged when determining compliance with the basic restrictions. IEEE Std. C95.1
6 anechoic chamber An enclosure especially designed with boundaries that absorb incident waves thereon to maintain an essentially reflection free field condition in the frequency range of interest. MIL-STD-463A
7 acoustic meatus, auditory canal Passageway that leads from the outside of the ear to the tympanic membrane. http://www.eb.com/
8 antineoplastic drugs A chemotherapeutic agent that controls or kills cancer cells. Mosby's MEDICAL DICTIONARY (7th EDITION)
9 antiproliferative effect The inhibition effect of cell growth. http://medical.merriam-webster.com/
10 antigen A substance that is capable of causing the production of an antibody. http://www.medicinenet.com/
11 antibody An immunoglobulin, a specialized immune protein, produced because of the introduction of an antigen into the body, and which possesses the remarkable ability to combine with the very antigen that triggered its production. http://www.medicinenet.com/
12 area scan A coarse resolution scan, also know as area scan, is used to determine the approximate peak locations near the surface of the phantom, typically in an area larger than that projected by the transmitter and its antenna. FCC OET 65c
13 axial isotropy The maximum deviation of the SAR when rotating around the major axis of the probe cover/case while the probe is exposed to a reference wave impinging from a direction along the probe major axis. IEC 62209-1
14 axon The cylinder-like extension of a nerve (neuron) cell that conducts electric impulses (synapses) away from the neuron. Mosby’s Medical Dictionary
15 AIDS (acquired immunodeficiency syndrome) AIDS is a set of symptoms and infections resulting from the damage to the human immune system caused by the human immunodeficiency virus (HIV). This condition progressively reduces the effectiveness of the immune system and leaves individuals susceptible to opportunistic infections and tumors.
16 absorbing boundary condition A boundary condition to truncate the infinitely large computational space into a finite region, when the wave-object interaction has to be considered in open regions. IEEE Std. 1528.1-2008, 편찬 위원
17 anatomy The study, classification, and description of structures and organs of the body. Mosby's MEDICAL DICTIONARY (7th EDITION)
18 action level The values of the electric and magnetic field strength, the incident power density, contact and induced current, and contact voltage above which steps should be initiated to avoid exposures that exceed the upper tier of the applicable standards, guidelines and regulations, and in areas that are in close proximity to RF conductors that may cause shock and burn hazards on contact.
19 amniotic fluid cell Cells are found in amniotic cavity fluid which is produced by the AMNION and fetal lungs and kidneys. http://www.nlm.nih.gov/
20 amniotic cell Cell are found in amniotic cavity fluid which is produced by the amnion and fetal lungs and kidneys. http://en.wikipedia.org/
21 apoptosis A type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suicide mechanism that enables to control cell number and eliminate cells that threaten the animal's survival. http://wordnet.princeton.edu/perl/webwn/
22 Alzheimer's disease A degenerative disease of the brain characterized by the insidious onset of dementia. Impairment of memory, judgment, attention span, and problem solving skills are followed by severe apraxias and a global loss of cognitive abilities. http://www.nlm.nih.gov/
23 antenna pattern The spatial distribution of a quantity that characterizes the electromagnetic field generated by an antenna. IEEE Std. 145-1993
24 ATPase Enzyme that catalyzes a process involving the hydrolysis of ATP. A large number of different proteins have ATPase activity. http://www.kmle.co.kr/
25 aneuploidy The chromosomal constitution of cells which deviate from the normal by the addition or subtraction of chromosomes, chromosome pairs, or chromosome fragments. http://www.nlm.nih.gov/
26 auditory ossicle The ossicles are three small bones articulated to each other in the middle ear : malleus, incus, and stapes. They conduct the vibrations of the tympanic membrane to the inner ear. http://www.eb.com/
27 adhesion The binding of a cell to another cell or to a surface or matrix. http://en.wikipedia.org/
28 astrocytomas Neoplasms of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors. Fibrillary astrocytomas are the most common type and may be classified in order of increasing malignancy (grades I through IV). http://www.nlm.nih.gov/
29 adenomas A benign tumor of a glandular structure or of glandular origin. http://en.wikipedia.org/
30 adenocarcinoma A cancer originating in glandular tissue. This tissue is also part of a larger tissue category known as epithelial. Epithelial tissue includes skin, glands and a variety of other tissue that lines the cavities and organs of the body. http://en.wikipedia.org/
31 arrhythmia Loss or abnormality of rhythm; denoting especially an irregularity of the heartbeat. http://www.stedmans.com/
32 allogenic Genetically different individuals belonging to the same species. http://www.celltec.de/
33 array factor The radiation pattern of an array antenna when each array element is considered to radiate isotropically. IEEE Std. 145-1993
34 antenna array, adaptive An antenna system incorporating active circuits associated with radiating elements whereby one or more of the characteristics of the antenna are automatically modified in a prescribed manner as a function of the received signal or changes in the electromagnetic environment. Also referred to as smart antenna.
35 antenna array (array antenna) An antenna comprised of a number of identical radiating elements in a regular arrangement and excited to obtain a prescribed radiation pattern. IEEE Std. 145-1993
36 athermal effect Any effect of electromagnetic energy on a body that is not a heat-related effect. ICNIRP Guidelines
37 aortic vessel The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body. http://www.nlm.nih.gov/
38 aorta The aorta is the largest artery in the human body, originating from the left ventricle of the heart and bringing oxygenated blood to all parts of the body in the systemic circulation. http://en.wikipedia.org/
39 acute lymphoblastic leukaemia (ALL) An acute (sudden onset), rapidly progressing form of leukemia that is characterized by the presence of large numbers of unusually immature white blood cells destined to become lymphocytes in the blood and bone marrow. http://www.medicinenet.com/
40 acute myeloid leukaemia A cancer of the myeloid line of white blood cells, characterized by the rapid proliferation of abnormal cells which accumulate in the bone marrow and interfere with the production of normal blood cells. http://en.wikipedia.org/
41 amyotrophic lateral sclerosis A degenerative disorder affecting upper motor neurons in the brain and lower motor neurons in the brain stem and spinal cord. http://www.nlm.nih.gov/
42 active implantable medical device (AIMD) Any active medical device which is intended to be totally or partially introduced, surgically or medically, into the human body or by medical intervention into a natural orifice, and which is intended to remain after the procedure. EN50527
43 attenuation coefficient Numerical factor intended to account for attenuation due to the human head or body tissue between the source and a specified point. IEC 62209-1
44 AIMD employee An employee bearing one or more AIMDs. EN50527
45 adverse health effect A biological effect characterized by a harmful change in health. EEE Std. C95.1
46 action value Magnitude of directly measurable parameters provided in terms of electric field strength (E), magnetic field strength (H), magnetic flux density (B) and power density (S), contact current and limb induced current. Compliance with these values will ensure compliance with the relevant exposure limit values (from Directive 2004/40/EC)
47 auricle The largely cartilaginous projecting portion of the outer ear consisting of the helix, lobule, and anti-helix. The pinna is also called the auricle. IEEE Std. C95.1
48 average (temporal) absorbed power the time-averaged rate of energy transfer IEC 62209-1
49 alternating field Altering field is made by alternating current. In alternating current (AC, also ac) the movement (or flow) of electric charge periodically reverses direction. http://en.wikipedia.org/
50 blood-brain barrier (BBB) A barrier made up of neural and capillary walls which limits the movement of substances in the bloodstream into the brain. http://www.eb.com/
51 blood Blood is a specialized bodily fluid that delivers necessary substances to the body's cells such as nutrients and oxygen and transports waste products away from those same cells. http://en.wikipedia.org/
52 blood mononuclear cell (BMC or BMNC) A blood cell having a round nucleus, such as a lymphocyte or a monocyte. These blood cells are a critical component in the immune system to fight infection and adapt to intruders. http://en.wikipedia.org/
53 brain (grey matter) Those regions of the brain and spinal cord that are made up primarily of the cell bodies and dendrites of nerve cells rather than myelinated axons. Stedman's Medical Dictionary
54 body supported device A device whose intended use includes being held directly against the user while transmitting( e.g. laptops). IEC 62209-2
55 body-mounted radio A wireless transceiver that is normally operated (intended use) by means of acoustic or electrical control accessories while the device is placed in the pocket of a garment or is maintained close to the body by means of a belt clip, holster, pouch, lanyard, or similar device. IEEE Std. 1528-2003
56 body-mounted device A portable device containing a wireless transmitter or transceiver which is located close to a person’'s torso or limbs (other than the head) by means of a carry accessory during its intended use or operation of its radio functions (e.g., a portable device on a belt-clip, in a holster, in a pouch, or on a lanyard when worn as necklace).
57 binucleated cell Cell has two nuclei, which is generated from defect of the final stage of mitosis. Mosby‘s MEDICAL DICTIONARY (7th EDITION)
58 benign skin tumo(u)r A neoplasm originating in the epidermis which is not dangerous to health because it is not progressive, invasive, or recurrent. 편찬 위원
59 benign tumo(u)r Benign tumour does not spread. They may grow to a large size but they do not go to other parts of the body. http://www.cancerbackup.org.uk/
60 breast carcinoma A malignant neoplastic disease of breast tissue. Mosby's MEDICAL DICTIONARY (7th EDITION)
61 bladder cancer Tumors or cancer of the urinary bladder. http://www.nlm.nih.gov/
62 bradycardia Slowness of the heart rate, usually fewer than 60 beats per minute in an adult human. http://www.kmle.co.kr/
63 biosynthesis The building-up of synthetic phase of metabolism. Small precursor or building block molecules are built up into large macromolecular components of cells, such as proteins and nucleic acids. Lehninger Principle of Biochemistry
64 biological effect A biological effect is an established effect caused by, or in response to, exposure to a biological, chemical or physical agent, including electromagnetic energy. Biological effects are alterations of the structure, metabolism, or functions of a whole organism, its organs, tissues, and cells. Biological effects can occur without harming health and can be beneficial. Biological effects also can include sensation phenomena and adaptive responses.
65 bioassay An assay that uses a living system, such as an intact cell, as a component. http://www.genpromag.com/
66 berylliosis A chronic lung disease caused by prolonged exposure to beryllium, a chemical irritant to the lungs. With prolonged exposure, the lungs become hypersensitive to it causing the development of small inflammatory nodules, called granulomas. http://www.kmle.co.kr/
67 brain (white matter) Those regions of the brain and spinal cord that are largely or entirely composed of nerve fibers and contain few or no neuronal cell bodies or dendrites. Stedman's Medical Dictionary
68 basic restriction Restrictions on exposure to time-varying electric, magnetic, and electromagnetic fields that are based directly on established health effects. Depending upon the frequency of the field, the physical quantity used to specify these restrictions are current density(J), specific absorption rate(SAR) and power density(S).
69 blind study A study in which the subject is unaware of his or her role as experimental or control subject in an experiment. IEEE Std. 539-1990
70 brain tumour An invasive neoplasm of the intracranial portion of the central nervous system. Mosby's MEDICAL DICTIONARY (7th EDITION)
71 bladder A distensible musculomembranous organ serving as a receptacle for fluid, such as the urinary bladder or gall bladder. Stedman's Medical Dictionary
72 base station (BS) Fixed equipment for radio transmission used in cellular communication and/or wireless local area networks. Point-to-point communication and point-to-multipoint communication equipment integral to the above networks are also included. The term base station includes the radio transmitter(s) and the associated antenna(s).
73 B-lymphocyte (B cell) A type of lymphocyte that originates in the bone marrow. A precursor of the plasma cell, it is one of the two lymphocytes that play a major role in the body`s immune response. Mosby's MEDICAL DICTIONARY (7th EDITION)
74 B-cell lymphoma B-Cell which produces antibody mutates and becomes cancerous. After this occurs, every time this cancerous B-Cell clones itself, the new cell maintains the structure of the mutated cell. http://www.cancercenter.com/
75 bone-marrow The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes.
76 boundary effect (of probe) A change in sensitivity of an E-field probe when the probe is located close to media boundaries (less than one probe-tip diameter). IEEE Std. 1528-2003
77 boundary element method (BEM) A numerical computational method of solving linear partial differential equations which have been formulated as integral equations (i.e. in boundary integral form). It can be applied in many areas of engineering and science including fluid mechanics, acoustics, electromagnetics, and fracture mechanics. (In electromagnetics, the more traditional term method of moments is often, though not always, synonymous with boundary element method.)
78 cancellous bone Cancellous bone is a type of osseous tissue with a low density and strength but very high surface area, that fills the inner cavity of long bones. en.wikipedia.org/
79 corpus luteum The remains of ovarian follicle after ovulation that acts as an endocrine organ supporting pregnancy and preventing menstruation. The corpus luteum secretes progesterone which prepares the uterus with the rich lining needed for the fertilized egg to implant. http://www.kmle.co.kr/
80 chemical carcinogen Any chemical substance capable of causing cancer. http://www.kmle.co.kr/
81 chemical mutagen Chemical mutagens are defined as those compounds that increase the frequency of some types of mutations. http://lecturer.ukdw.ac.id/
82 chemoreceptor A sensory receptor that responds to chemical stimuli. http://www.kmle.co.kr/
83 cohort A collection or sampling of individuals who share a common characteristic, such as members of the same age or the same sex. Any designated group of persons who are followed or traced over a period of time. Dictionary of epidemiology, 4th edition
84 cortisol A hormone secreted by the adrenal gland in the body that has numerous functions, and is elevated in stress states. http://depts.washington.edu/
85 comet assay Genotoxicological technique for measuring DNA damage in an individual cell using single-cell gel electrophoresis. http://www.nlm.nih.gov/
86 conductance The reciprocal of resistance. Expressed in siemens (S). ICNIRP Guidelines
87 calcium channel antagonists A class of drugs that act by selective inhibition of calcium influx through cell membranes or on the release and binding of calcium in intracellular pools. http://www.nlm.nih.gov/
88 calcium efflux The process of flowing out of the calcium ion from cells. http://www.kmle.co.kr/
89 catecholamine Any of various amines (as epinephrine, norepinephrine, and dopamine) that contain a dihydroxy benzene ring, that are derived from tyrosine, and that function as hormones or neurotransmitters or both. http://www.nlm.nih.gov/
90 carboxylase One of several carboxylyases that catalyzing the addition of CO2 to all or part of another molecule to create an additional COOH group (e.g., ribulose-1,5-bisphosphate carboxylase). http://www.kmle.co.kr/
91 cortical bone Cortical bone, or compact bone, is one of two main types of osseous tissue. Cortical bone is dense and forms the surface of bones, contributing 80% of the weight of a human skeleton. It is extremely hard, formed of multiple stacked layers with few gaps. http://en.wikipedia.org/
92 central nervous system The main information-processing organs of the nervous system, consisting of the brain, spinal cord, and meninges. http://www.nlm.nih.gov/
93 cortex The outer layer of a body organ or other structure, as distinguished from the internal substance. Mosby's MEDICAL DICTIONARY (7th EDITION)
94 colony A group of cells growing on a solid nutrient surface, each arising from the multiplication of an individual cell; a clone. http://www.stedmans.com/
95 conducted output power The average power supplied by a transmitter to the transmission line of an antenna during an interval of time sufficiently long compared with the period of the lowest frequency encountered in the modulation evaluated under normal operating conditions. IEC 62209-1
96 compliance boundary A compliance boundary defines a volume outside which any point of investigation is deemed to be compliant. Outside the compliance boundary, the exposure levels do not exceed the basic restrictions irrespective of the time of exposure. EN 50383
97 compliance distance Minimum distance from the antenna where a point of investigation is deemed to be compliant. The set of compliance distances therefore defines the boundary outside which the exposure levels do not exceed the basic restrictions irrespective of the time of exposure. The distances are measured related to the nearest point of the antenna in each investigation direction.
98 contact current Contact current is the current flowing into the body by touching a conductive object in an electromagnetic field. ITU K.52
99 clastogen A material that can cause breaks in chromosomes, leading to sections of the chromosome being deleted, added, or rearranged. This is a form of mutagenesis, and can lead to carcinogenesis, as cells that are not killed by the clastogenic effect may become cancerous. Known clastogens include acridine yellow, benzene, ethylene oxide, arsenic, phosphine and mimosine.
100 crest factor For periodic functions, the ratio of the waveform crest (peak, maximum) value to its r.m.s. value. IEC 61786
101 cholinergic A receptor that uses acetylcholine as its neurotransmitter is cholinergic. The parasympathetic nervous system is entirely cholinergic. Neuromuscular junctions, preganglionic neurons of the sympathetic nervous system, the basal forebrain, and brain stem complexes are also cholinergic. http://en.wikipedia.org/
102 collagen Collagen is the principal protein of the skin, tendons, cartilage, bone and connective tissue. http://www.medicinenet.com/
103 circadian Of or relating to biological processes occurring at 24-hour intervals; circadian rhythms. http://www.kmle.co.kr/
104 continuous exposure Continuous exposure is defined as exposure for duration exceeding the corresponding averaging time. Exposure for less than the averaging time is called short-term exposure. ITU K.52
105 cartilage Anonvascular dense supporting connective tissue composed of chondrocyte and various fiber or ground substance. Mosby's MEDICAL DICTIONARY (7th EDITION)
106 conservative estimate (of SAR) Conservative estimate means an estimate of the peak spatial-average SAR, including uncertainties as defined in this standard, representative of that which would be expected to occur in the heads of a significant majority of persons during normal use of handheld wireless devices. Conservative estimate does not mean the absolute maximum SAR value that could possibly occur under every conceivable combination of head size, head shape, handset orientation, and spacing relative to the head.
107 cancer-associated gene Gene has functions related with promotion or suppression of tumorigenesis. 편찬 위원
108 cancer (tumor) initiation A process in which normal cells are changed leading to proliferation of a single cells so that they are able to form tumors as a result of a genetic alteration. Substances that cause cancer can be tumor initiators. http://en.wikipedia.org/
109 cancer (tumor) promotion After tumor initiation, a process in which existing tumors are stimulated to grow rapidly by the results of additional mutations . Tumor promoters are not able to cause tumors to form. http://en.wikipedia.org/
110 carcinomas A type of cancer that arises from the lining cells of the body, called epithelial cells. Epithelial cells form the outer layer of the skin, and the membranes lining the digestive tract, bladder and uterus, as well as the tubes and ducts that run through the body's organs. http://my.webmd.com/content/
111 chromosome aberration Any deviation from the normal number of chromosomes or in their morphology. Many chromosome aberrations, but not all, are the cause of chromosome disorder. http://www.nlm.nih.gov/
112 chromosome Any of the threadlike structures in nucleus of a cell that function in the transmission of genetic information. Mosby's MEDICAL DICTIONARY (7th EDITION)
113 chromatin A complex of nucleic acids and proteins in the cell nucleus that condenses to form chromosomes during cell division. Mosby's Medical Dictionary
114 chromatid Either of the two longitudinally adjacent threads formed when a eukaryotic chromosome replicates prior to mitosis. Dictionary of Microbiology and Molecular Biology
115 current density The electric current or flow of electric charge through a conducting medium, such as tissue, per unit cross-sectional area. Unit ampere per square metre, symbol Am-2. http://www.hpa.org.uk/radiation/glossary/default.htm/
116 conductivity The ratio of the conduction-current density in a medium to the electric field strength IEC 62209-1
117 continuous wave A wave whose successive oscillations are identical under steady-state conditions. ICNIRP Guidelines
118 cell line A colony of animal cells derived and developed as a subculture from a primary cell culture. Mosby's Medical Dictionary
119 cell migration Cell migration is a central process in the development and maintenance of multicellular organisms. Tissue formation uring embryonic development, wound healing and immune responses all require the orchestrated movement of cells in a particular direction to a specific location. http://en.wikipedia.org/
120 cytogenetics The branch of biology that deals with heredity and the cellular components, particularly chromosomes, associated with heredity. Mosby's Medical Dictionary
121 cytolytic Pathological dissolution or disintegration of cells. http://www2.merriam-webster.com/
122 cell signaling A complex system of communication that governs basic cellular activities and coordinates cell actions. The ability of cells to perceive and correctly respond to their microenvironment is the basis of development, tissue repair, and immunity as well as normal tissue homeostasis. http://en.wikipedia.org/
123 cell growth Cell growth designates either cell enlargement or cell proliferation. Cell enlargement is a growth process that results in an increase in cell size. Cell proliferation is a process involved in increasing cell number by cell division. http://en.wikipedia.org/
124 computational model (of human body) A mathematical representation of the external envelope of the human body shape together with the boundaries of the internal organs and tissues. The volumes of the organs and tissues are filled with a medium assigned with the correct physical properties. IEEE Std. 1528.1-2008
125 cancer progression Second stage of tumor development after tumor initiation. Elements of tumor progression are angiogenesis and metastasis. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
126 cyclic AMP An adenine nucleotide containing one phosphate group which is esterified to both the 3'- and 5'-positions of the sugar moiety. It is a second messenger and a key intracellular regulator, functioning as a mediator of activity for a number of hormones. http://www.nlm.nih.gov/
127 cytochrome The membrane-bound hemoproteins that contain heme groups and carry out electron transport. They are found either as monomeric proteins (e.g., cytochrome c) or as subunits of bigger enzymatic complexes that catalyze redox reactions. They are found in the mitochondrial inner membrane and endoplasmic reticulum of eukaryotes, in the chloroplasts of plants, in photosynthetic microorganisms, and in bacteria.
128 cytokine Small proteins or biological factors that are released by cells and have specific effects on cell-cell interaction, communication and behaviour of other cells. Not really different from hormones, but the term tends to be used as a convenient generic shorthand for interleukins, lymphokines and several related signalling molecules such as TNF and interferons.
129 case reports Clinical presentations that may be followed by evaluative studies that eventually lead to a diagnosis. http://www.nlm.nih.gov/
130 case series The instances of similar diseases or injuries. http://www.nlm.nih.gov/
131 cancer promoter A cocarcinogene that encourage cells altered by initiators to reproduce more rapidly than normal, increasing the probability of malignant transformation. Mosby's Medical Dictionary
132 childhood leukaemia Form of the disease most commonly occurs in younger children ages 2 to 8, with a peak incidence at age 4. The body produces lymphocytes to protect the body from infection, in leukaemia these cells do not mature properly and become too numerous in the blood and bone marrow. http://www.cancerindex.org/
133 cerebellum The large posterior brain mass lying posterior (dorsal) to the pons and medulla and inferior to the tentorium cerebelli and posterior portion of the cerebrum; it consists of two lateral hemispheres united by a narrow middle portion, the vermis. Stedman's Medical Dictionary
134 cellular Radio-communication system for land mobile service in which the desired service area is divided into a number of sub-areas, called “cells”, with one or more base stations providing radio coverage to each cell. http://www.electropedia.org/
135 cytoplasm The protoplasm of a cell exclusive of that of the nucleus, it consists of a continuous aqueous solution (cytosol) and the organelles and inclusions suspended in it (phaneroplasm) and is the site of most of the chemical activities of the cell. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
136 cardiovascular system The heart and the blood vessels by which blood is pumped and circulated through the body. http://www.nlm.nih.gov/
137 cardiovascular Relating to the heart and blood vessels or the circulation. Mosby's MEDICAL DICTIONARY (7th EDITION)
138 cardiovascular physiology Functions and activities of the CARDIOVASCULAR SYSTEM as a whole or of any of its parts. http://www.nlm.nih.gov/
139 cardiac contraction Contractile activity of the myocardium (The muscle tissue of the heart). http://www.nlm.nih.gov/
140 cyclooxygenase (COX) An enzyme that is responsible for formation of important biological mediators called prostanoids, including prostaglandins, prostacyclin and thromboxane. http://www.kmle.co.kr/
141 cardiac pacemaker An electronic cardiac-support device that produces rhythmic electrical impulses that take over the regulation of the heartbeat in patients with certain types of heart disease. http://www.eb.com/
142 cardiac function The primary function of the heart is to impart energy to blood in order to generate and sustain an arterial blood pressure necessary to provide adequate perfusion of organs. http://www.cvphysiology.com/
143 cardiac fibrillation The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart. http://en.wikipedia.org/
144 cardiac extrasystoles A prematurely occurring beat of one of the chambers of the heart that leads to momentary arrhythmia but leaves the fundamental rhythm unchanged. http://www.kmle.co.kr/
145 cardiac muscle fiber Aspecial strated muscle of the myocardium, containing dark intercalated disks at the junction of abutting fibers. Mosby's MEDICAL DICTIONARY (7th EDITION)
146 cytoskeleton The network of filaments, tubules, and interconnecting filamentous bridges which give shape, structure, and organization to the cytoplasm. Cytoskeletal component are Microfilaments, Microtubules, and Intermediate fibers. http://www.nlm.nih.gov/
147 cell biochemistry The study of cells. Implies the use of light or electron microscopic methods for the study of morphology. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
148 cell viability Cell viability is a determination of living or dead cells, based on a total cell sample. In other applications cell viability tests might calculate the effectiveness of a pesticide or insecticide, or evaluate environmental damage due to toxins. http://www.wisegeek.com/what-is-cell-viability.htm/
149 cell metabolic activity The chemical reactions that occur within the cells. These processes include both the biosynthesis (ANABOLISM) and the breakdown (CATABOLISM) of organic materials utilized by the cell. http://www.nlm.nih.gov/
150 complex permittivity The ratio of the electric flux density in a medium to the electric field strength at a point. IEC 62209-1
151 coverage factor A factor k that is used to obtain the expanded uncertainty from the combined uncertainty with a known probability(P) of containing the true value of the measurand. Specifically, k × (combined uncertainty) = (expanded uncertainty). When k=1, P~0.68; k=2, P~0.95; k=3, P~0.999. IEEE Std. 1528-2003
152 culture medium A substance that provides a nutritional environment for the growth of microorganisms or cells. Mosby's Medical Dictionary
153 carcinogenicity Carcinogenicity is ability of a substance to cause cancer. http://ccinfoweb.ccohs.ca/help/msds/msdstermse.html/
154 carcinogenic agent Agent has the ability to cause the development of a cancer. Mosby‘s MEDICAL DICTIONARY (7th EDITION)
155 carcinogenic process Process of producing or tending to produce cancer. Tumor initiation occurs when accumulated mutations free the cell from growth restraints. Tumor promotion leads to cells lost further growth controls. Tumor progression is achieved two process, angiogenesis and metastasis. http://www.nlm.nih.gov/ (modified)
156 cell division The process in reproduction and growth by which a cell divides to form daughter cells. http://wordnet.princeton.edu/perl/webwn/
157 cell culture Cells propagated in vitro in special media conducive to their growth. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
158 cell membrane A component of every biological cell, the selectively permeable cell membrane (or plasma membrane or plasmalemma) is a thin and structured bilayer of phospholipid and protein molecules that envelopes the cell. http://en.wikipedia.org/
159 cell membrane physiology Science that describes how cell membrane function and metabolism. http://people.eku.edu/
160 cytotoxin Substances that are toxic to cells; they may be involved in immunity or may be contained in venoms. The mechanism of action of many of these are as alkylating agents or mitosis modulators. http://www.nlm.nih.gov/
161 cytotoxic T-lymphocytes A type of white blood cell that can directly destroy specific cells (lysing target cells and for killing virus infected cells). Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
162 co-promotion Stimulation of tumour induction, following initiation, with other promoting agents which may of itself be noncarcinogenic. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
163 control group, controls Subjects with whom comparison is made in a case control study, randomized controlled trial, or other variety of epidemiologic study. Dictionary of epidemiology
164 cerebrum The largest and uppermost section of the brain, divided by a longitudinal fissure into the left and right cerebral hemispheres. Mosby's MEDICAL DICTIONARY (7th EDITION)
165 cranium The part of the skull that encloses the brain. http://www.kmle.co.kr/
166 chronic exposure Exposure to toxic chemicals or other stimuli occurring over a long period of time. http://science.education.nih.gov/
167 chronic myeloid leukaemia A slowly progressing disease in which too many white blood cells are made in the bone marrow. http://www.cancer.gov/
168 catheter A tubular instrument to allow passage of fluid from or into a body cavity or blood vessel. http://www.stedmans.com/
169 cerebrospinal fluid A fluid largely secreted by the choroid plexuses of the ventricles of the brain. Stedman's Medical Dictionary
170 cerebrospinal The clear, colourless liquid that fills the ventricles of the brain and the spinal cord, and acts as a lubricant and helps cushion these organs from blows and other trauma. http://www.eb.com/
171 cornea The transparent tissue constituting the anterior sixth of the outer wall of the eye. Stedman's Medical Dictionary
172 Ca2+ calmodulin dependent reaction Reaction by calmodulin that functions as a multipurpose intracellular Ca2+ receptors, mediating many ca2+-regulated processes. Molecular Biology of the cell
173 Ca2+ calmodulin dependent myosin phosphorylation An important mechanism in excitation contraction coupling in smooth muscle. Phosphorylation by a Ca2+, calmodulin-dependent kinase stimulates the actin-activated Mg2+-ATPase activity of smooth muscle myosin, suggesting that myosin phosphorylation regulates smooth muscle contraction.
174 controlled exposure Controlled/occupational exposure applies to situations where the persons are exposed as a consequence of their employment and in which those persons who are exposed have been made fully aware of the potential for exposure and can exercise control over their exposure. Occupational/controlled exposure also applies to the cases where the exposure is of transient nature as a result of incidental passage through a location where the exposure limits may be above the general population/uncontrolled limits, as long as the exposed person has been made fully aware of the potential for exposure and can exercise control over his or her exposure by leaving the area or by some other appropriate means.
175 colon The large intestine extending from the cecum to the rectum. Stedman's Medical Dictionary
176 collagen fiber The main protein of connective tissues including skin, tendons, cartilage and bone in animals and the most abundant protein in mammals, making up about 25% to 35% of the whole-body protein content. http://www.kmle.co.kr/
177 cervix The cervix is the lower, narrow portion of the uterus where it joins with the top end of the vagina. It is cylindrical or conical in shape and protrudes through the upper anterior vaginal wall. It is also called the neck of uterus. http://en.wikipedia.org/ (modified)
178 DNA microsatellites A repeated sequence of two to five nucleotides in DNA sequences. http://www.kmle.co.kr/
179 dermal cell Pertaining to the skin. The skin has four general components, the epidermis, dermis, subcutaneous tissue, and appendages. http://en.wikipedia.org/
180 domain of investigation (DI) Sub-domain of relevant domain where the general public may have access when the base station is put into service. EN 50400
181 decarboxylase Any of the enzymes that hydrolize the carboxyl group. http://www.kmle.co.kr/
182 dielectric A non-metal, non-conducting (material, substance). When external electric field is applied, the electric dipole moment is induced in the dielectric (material, substance). This dipole moment cancels part of the external electric field. 편찬 위원
183 dendrite (neuronal) A structure that extends from the cell body of a nerve (neuron). These receive signals that are sent on to the cell body. The number of dendrites varies with the functions of a neuron. Mosby’s Medical Dictionary
184 duodenum The duodenum is a hollow jointed tube about 25-30 cm long connecting the stomach to the jejunum. It is the first and shortest part of the small intestine where most chemical digestion takes place. http://en.wikipedia.org/
185 dose The amount of a chemical or other agent delivered to an organism; usually normalized to the mass of an organism. IEEE Std. 539-1990
186 dose response relationship The relationship between the dose of an administered drug and the response of the organism to the drug. http://www.kmle.co.kr/
187 dipole antenna Any one of a class of antennas producing a radiation pattern approximating that of an elementary electric dipole. IEEE Std. 145-1993
188 development The process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level. http://www.kmle.co.kr/
189 duty cycle The ratio of the sum of all pulse durations to the total period, during a specified period of continuous operation. IEEE Std. 100-1996
190 duty ratio The ratio of average-to-peak envelope power. IEEE Std. 1528-2003
191 decibel (dB) A standard unit for expressing the ratio between two parameters using logarithms to the base 10. Decibels provide a convenient format to express voltages or powers that range several orders of magnitude for a given system. Also, it is the standard unit for expressing transmission gain or loss and relative power levels.
192 DNA A nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms and some viruses. The main role of DNA molecules is the long-term storage of information. http://en.wikipedia.org/
193 DNA synthesis (DNA replication) A process by which copies of nucleic acid strands are made. In nature, DNA synthesis takes place in cells by a mechanism known as DNA replication. http://www.kmle.co.kr/
194 detection limits The lower (respectively upper) detection limit defined by the minimum (respectively maximum) quantifiable response of the measuring equipment. IEC 62209-1
195 dura The dura mater is the tough and inflexible outermost of the three layers of the meninges surrounding the brain and spinal cord. http://en.wikipedia.org/
196 epidermal cell The superficial vascular layers of the skin, made up of an outer dead, cornified part and a deeper living, cellular part. Each layer is named for its unique function, texture, or position. Mosby's Medical Dictionary
197 epidermal hyperplasia An increase in the number of cells of epidermis that results from an increased rate of cellular division. Types of hyperplasia include compensatory, hormonal, and pathologic. Mosby's Medical Dictionary
198 endothelium The thin layer of cells that line the interior surface of blood vessels, forming an interface between circulating blood in the lumen and the rest of the vessel wall. Endothelial cells line the entire circulatory system, from the heart to the smallest capillary. http://www.kmle.co.kr/
199 enzyme activity A complex produced by living cells that catalyzes chemical reactions in organic matter. Mosby's Medical Dictionary
200 Environmental Health Criteria (EHC) A series of monographs prepared by the International Programme on Chemical Safety (IPCS) and published by the World Health Organization (WHO). They aim to give comprehensive data from scientific sources for the establishment of safety standards and regulations. http://en.wikipedia.org/
201 established adverse health effect A biological effect characterized by a harmful change in health that is supported by consistent findings. That effect in studies published in the peer-reviewed scientific literature with evidence of the effect being demonstrated by independent laboratories. IEEE Std. C95.1
202 endpoint A measurable response of interest in a biological experiment. IEEE Std. 100-1996
203 electrical boresight The tracking axis as determined by an electrical indication, such as the null direction of a conical-scanning or monopulse antenna system, or the beam-maximum direction of a highly directive antenna. IEEE Std. 145-1993
204 electric field strength A vector field, often denoted as at a specific point. In a zero magnetic field, it is numerically equal to the force on a motionless unit positive test charge placed at that point. IEEE Std. 100-1996
205 electrophoresis An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current. http://www.nlm.nih.gov/
206 erythrocyte Mature red blood cell. It is the major cellular element of the circulating blood and transports oxygen as its principal function. Mosby's Medical Dictionary
207 electromagnetic interference (EMI) Degradation of the performance of a device, a piece of equipment, or a system caused by an electromagnetic disturbance. IEEE Std. 100-2000
208 electromagnetic field A time-varying field, associated with the electric or magnetic forces and described by Maxwell's equations. IEEE Std. 211-1997
209 electromagnetic spectrum The entire range of wavelengths of all known electromagnetic radiations. It includes Gamma rays, X-rays, Ultraviolet(UV), Visible light, Infrared(IR) radiation and Radio waves. ICNIRP Guideline
210 elasmobranch Any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates. http://www.kmle.co.kr/
211 epidemiology The study of frequency, distribution, risk factors, and determinants of health and disease in human populations. Mosby's Medical Dictionary/ (modified)
212 erythropoietin Glycoprotein hormone, secreted chiefly by the kidney in the adult and the liver in the fetus, that acts on erythroid stem cells of the bone marrow to stimulate proliferation and differentiation. http://www.kmle.co.kr/
213 electric potential The potential difference between the point and some equipotential surface, usually the surface of the earth, which is arbitrarily chosen as having zero potential (remote earth). IEEE Std. 100-2000
214 electric flux density (displacement) A vector quantity related to the charge displaced within the medium by an electric field. The electric flux density is that function whose divergence is the charge density. IEEE Std. 100-1996
215 exogeneous Originating or produced outside of an organism, tissue, or cell. Stedman's Medical Dictionary
216 extracellular fluid A general term for all the body fluids outside the cells, including the interstitial fluid, plasma, lymph, cerebrospinal fluid, etc. Extracellular fluid consists of ultrafiltrates of the blood plasma and transcellular fluid, ie, fluid produced by active cellular secretion. It provides a constant external environment for the cells.
217 extracellular Occurring outside a cell or cell tissue or in cavities or spaces between cell layer or groups of cells. Mosby's Medical Dictionary
218 embryogenesis The process by which the embryo is formed and develops. http://en.wikipedia.org/
219 embryo An embryo is a multicellular diploid eukaryote in its earliest stage of development. http://en.wikipedia.org/
220 epithelium The covering of the internal and external organs of the body and the lining of vessels, body cavities, glands, and organs. It consists of cells bound together by connective material and varies in the number of layers and the kinds of cells. Mosby's Medical Dictionary
221 esophagus A muscular tube that in adult humans is about nine inches (23 centimeters) long and passes from the pharynx down the neck between the trachea and the spinal column. http://www.kmle.co.kr/
222 effective radiated power (ERP) In a given direction, the relative gain of antenna with respect to the maximum directivity of a half-wave dipole multiplied by the net power accepted by the antenna from the connected transmitter. IEEE Std. 100-1996
223 exposure, whole-body Exposure of the whole body (or the torso when induced current density is considered). IEC 62311
224 ectopic Out of place; said of an organ not in its proper position. http://www.stedmans.com/
225 equivalent free space conditions (EFSC) Conditions allowing re-use of free space methods defined in EN 50383. A point of investigation is deemed to be in equivalent free space conditions of a relevant source if there are no significant reflecting or diffracting structures in the scatter domain of the relevant sources. EN 50400
226 equivalent plane wave power density The power per unit area normal to the direction of propagation of a plane wave in free space EN 50400
227 (eye) sclera A portion of the fibrous layer forming the outer envelop of the eyeball Stedman's Medical Dictionary
228 exposure limit Value of an electric, magnetic or electromagnetic field derived from the basic restrictions using worst-case assumption about exposure. IEC 62311
229 exposure assessment Conformity assessment with respect to applicable exposure limit(s). IEC 62311
230 exposure ratio (ER) The assessed exposure parameter at a specified location for each operating frequency of a radio source, expressed as the fraction of the related limit EN 50400
231 exposure, direct effect of Result of a direct interaction in the exposed human body from exposure to electromagnetic fields. IEC 62311
232 exposure, non-uniform/partial body Non-uniform or partial-body exposure levels result when fields are non-uniform over volumes comparable to the whole human body. This may occur due to highly directional sources, standing waves, scattered radiation or in the near field. ITU K.52
233 exposure, partial-body Localised exposure of part of the body, producing a corresponding localised SAR or induced current density, as distinct from a whole-body exposure. IEC 62311
234 exposure, indirect effect of Result of a secondary interaction between the exposed human body and an electromagnetic field, often used to describe a contact current, shock or burn arising from contact with a conductive object. IEC 62311
235 exposure An expression of the quantity of some material, agent, etc., that is incident on an organism. IEEE Std. 539-1990
236 exposure matrix Display of exposure data in columns and rows. Dictionary of epidemiology, 4th edition
237 endogenous Originating or produced within an organism, tissue, or cell. Stedman's Medical Dictionary
238 endocrinology The study of the anatomic, physiologic and pathologic characteristics of the endocrine system and of the treatment of endocrine problems. Mosby's Medical Dictionary
239 endocrine system The network of ductless glands and secrete hormones directly into the bloodstream, affecting various processes throughout the body. Mosby's Medical Dictionary
240 exposure level Value of the quantity used to assess exposure IEC 62311
241 ELF Extremely low frequency; frequency below 300 Hz. ICNIRP Guidelines
242 Fresnel region The region (or regions) adjacent to the region in which the field of an antenna is focused (that is, just outside the Fraunhofer region). IEEE Std. 145-1993
243 Fraunhofer region The region in which the field of an antenna is focused. IEEE Std. 145-1993
244 Fourier transformation Mathematical procedure that derives a frequency function from a time function. IEC 62233
245 frequency The number of sinusoidal cycles completed by electromagnetic waves in 1 s; usually expressed in hertz (Hz). ICNIRP Guidelines
246 fat A greasy, soft-solid material, found in animal tissues and many plants, composed of a mixture of glycerol esters. Stedman's Medical Dictionary
247 free-space loss The loss between two isotropic radiators in free space, expressed as a power ratio. IEEE Std. 145-1993
248 free space In classical physics, free space is a concept of electromagnetic theory, corresponding to a theoretically perfect vacuum and sometimes referred to as the vacuum of free space. http://en.wikipedia.org/
249 fetal Pertaining to the final stage of development of an embryonic mammal. In humans the fetal period extends from the end of the eighth week of intrauterine life until birth. Mosby's Medical Dictionary
250 fetotoxicity Pertaining to anything that is poisonous to a fetus. Mosby's Medical Dictionary
251 far-field pattern Any radiation pattern obtained in the far-field of an antenna. IEEE Std. 145-1993
252 front-of-face device Hand-held device used in close proximity to the face. IEC 62209-2
253 forebrain (prosencephalon) The large frontal area of the human brain. http://www.kmle.co.kr/
254 finite element method (FEM) A numerical technique for finding approximate solutions of partial differential equations (PDE) as well as of integral equations. One essential characteristic of the FEM is the mesh discretization of a continuous domain into a set of discrete sub-domains, usually called elements. http://en.wikipedia.org/
255 frontal lobe The anterior division of each cerebral hemisphere having its lower part in the anterior fossa of the skull and bordered behind by the central sulcus. http://www.kmle.co.kr/
256 Finite Difference Time Domain (FDTD) method A numerical algorithm for solving Maxwell's equations of EM field interactions in the time domain by discretizing the problem space into unit cells where the space and time derivatives of the electric and magnetic fields are directly approximated by simple, second-order accurate, central-difference equations.
257 flow cytometry Analysis of biological material by detection of the light-absorbing or fluorescing properties of cells or subcellular fractions such as chromosomes passing in a narrow stream through a laser beam. Flow cytometry is used with automated sorting devices to sort successive cell droplets of the stream into different fractions depending on the fluorescence emitted by each droplet.
258 free radical A species with at least one unpaired electron. Oxygen is a stable diradical, bur most other free radicals are unstable and react readily with other molecules. Mosby's Medical Dictionary
259 fibrinogen A soluble protein in the blood plasma. It is essential for the clotting of blood. Through the action of the enzyme thrombin, fibrinogen is converted into the insoluble protein fibrin. http://www.kmle.co.kr/
260 fibroblast A stellate or spindle-shaped cell with cytoplasmic processes present in connective tissue, capable of forming collagen fibers. Stedman's Medical Dictionary
261 foci A specific location, as the site of an infection or the point at which an elecrochemical impulse originates. Mosby's Medical Dictionary
262 fundamental frequency The lowest frequency component of a periodic signal. 편찬 위원
263 fixed terminal station A fixed terminal station, usually associated with the user, comprises the hardware, including transceivers, necessary to transmit and receive radio signals. Fixed terminal stations with integrated antennas, fixed terminal stations with connectors for external antennas and fixed terminal stations intended for use with external antennas not supplied by the same manufacturer are covered.
264 ground plane A conducting or reflecting plane functioning to image a radiating structure. IEEE Std. 145-1993
265 gain (of an antenna) The ratio of the power required at the input of a loss-free reference antenna to the power supplied to the input of the given antenna to produce, in a given direction, the same field strength at the same distance. RRS1.160, http://www.its.bldrdoc.gov/
266 genome The total set of genes carried by an individual or cell. 알기 쉬운 의학용어 풀이집
267 genotype The complete set of genes of an organism or group as determined by the combination and location of the genes on the chromosomes. Mosby’s Medical Dictionary
268 genotoxicity A deleterious action on a cell genetic material affecting its integrity. Genotoxic substances are known to be potentially mutagenic or carcinogenic, specifically those capable of causing genetic mutation and of contributing to the development of tumors. http://en.wikipedia.org/
269 gene probe A device used in molecular biology for locating a particular gene on a chromosome. It involves pairing a short known segment of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) with a matching sequence of bases on a chromosome. Mosby's MEDICAL DICTIONARY (7th EDITION)
270 gene transfer A type of gene therapy in which a gene is transplanted from a donor organism into a recipient organism. Mosby's Medical Dictionary
271 gene expression The realization of genetic information encoded in genes to produce function protein or RNA. Mosby's Medical Dictionary
272 gall bladder A pear-shaped organ on the inferior surface of the liver, in a hollow between the right lobe and the quadrate lobe. Stedman's Medical Dictionary
273 good laboratory practice (GLP) Good Laboratory Practice (GLP) embodies a set of principles that provides a framework within which laboratory studies are planned, performed, monitored, recorded, reported and archived. These studies are undertaken to generate data by which the hazards and risks to users, consumers and third parties, including the environment, can be assessed for pharmaceuticals (only preclinical studies), agrochemicals, cosmetics, food additives, feed additives and contaminants, novel foods, biocides, detergents etc.... GLP helps assure regulatory authorities that the data submitted are a true reflection of the results obtained during the study and can therefore be relied upon when making risk/safety assessments.
274 glioma Any of the largest group of primary tumors of the brain, composed of malignant glial cells. Stedman's Medical Dictionary
275 genotoxin A toxin (poisonous substance) which harms the body by damaging DNA molecules, causing mutations, tumours, or neoplasms. Cancer WEB Dictionary (http://cancerweb.ncl.ac.uk/omd/)
276 gap junction A type of junction between cells. Mosby's Medical Dictionary
277 growth factor Any protein that stimulates the division and differentiation of specific types of cells. Mosby's Medical Dictionary
278 gonadotrophin Hormone secreted by the anterior pituitary gland and placenta; stimulates the gonads and controls reproductive activity. http://www.nlm.nih.gov/
279 germ cell An ovum or a sperm cell or one of their developmental precursors. Also called sex cell. Mosby's Medical Dictionary
280 glaucoma A disease of the eye characterized by increased intraocular pressure and excavation and atrophy of the optic nerve; produces defects in the visual field and may result in blindness. Stedman's Medical Dictionary
281 granulocyte A type of leukocyte characterized by the presence of cytoplasmic granules. Kinds of granulocytes are basophil, eosinophil, and neutrophil. Mosby's Medical Dictionary
282 glioblastoma A neoplasm composed of spongioblasts, embryonic epithelial cells that develop around the neural tube and transform into cells of the supporting connective tissue of nerve cells or cells of lining membranes of the ventricles and the spinal cord canal. Mosby's Medical Dictionary
283 hematology The scientific study of blood and blood-forming tissues. Mosby's Medical Dictionary
284 hemoglobin (haemoglobin) The iron-containing oxygen-transport metalloprotein in the red blood cells of vertebrates, and the tissues of some invertebrates. Hemoglobin transports oxygen from the lungs or gills to the rest of the body where it releases the oxygen for cell use. It also has a variety of other roles of gas transport and effect-modulation which vary from species to species, and are quite diverse in some invertebrates.
285 Helmholtz coil The term Helmholtz coils refers to a device for producing a region of nearly uniform magnetic field. http://en.wikipedia.org/
286 hertzian electric dipole An elementary source consisting of a time-harmonic electric current element of specified direction and infinitesimal length. IEEE Std. 145-1993
287 hertzian magnetic dipole A fictitious elementary source consisting of a time-harmonic magnetic current element of specified direction and infinitesimal length. IEEE Std. 145-1993
288 histone Any of several small simple proteins that are most commonly found in association with the DNA in chromatin and contain a high proportion of basic amino acids. They are found in the nucleus of eukaryotic cells and function in regulating gene activity. Stedman's Medical Dictionary
289 haemopoiesis The normal formation and development of blood cells in the bone marrow. Mosby's Medical Dictionary
290 histology The science concerned with the minute structure of cells, tissues, and organs in relation to their function. Stedman's Medical Dictionary
291 histopathology The study of diseases involving the tissue cells. Mosby's Medical Dictionary
292 herbicide A substance used to kill unwanted plants. Selective herbicides kill specific targets while leaving the desired crop relatively unharmed. Some of these act by interfering with the growth of the weed and are often synthetic imitations of plant hormones. http://en.wikipedia.org/
293 hormone A complex chemical substance produced in one part or organ of the body that initiates or regulates the activity of an organ or a group of cells in another part. Mosby's Medical Dictionary
294 hippocampus A curved elevation of gray matter extending the entire length of the floor of the temporal horn of the lateral ventricle. It belongs to the limbic system and plays important roles in long-term memory and spatial navigation. Like the cerebral cortex, with which it is closely associated, it is a paired structure, with mirror-image halves in the left and right sides of the brain.
295 homeostasis A relative constancy in the internal environment of the body or cells. Mosby's Medical Dictionary
296 heat shock protein (HSP) Families of proteins conserved through prokaryotic and eukaryotic cells and bacteria in response to hyperthermia and other environmental stresses, although some are constitutively expressed. They increase thermal tolerance and perform functions essential to cell survival under these conditions. Some serve to stabilise proteins in abnormal configurations, play a role in folding and unfolding of proteins and the assembly of oligomeric complexes and may act as chaperonins. Four major subclasses are recognised: hsp90, hsp70, hsp60 and small hsps. Hsps have been suggested to act as major immunogens in many infections.
297 heat capacity The amount of heat necessary to raise the temperature of a given mass (not a specific unit mass) of a substance 1 ℃. Heat capacity is expressed in units of joules per kelvin (J/K) or joules per degree Celsius (J/℃). IEEE Std. 1528-2003
298 hazard Inherent property of an agent or situation having the potential to cause adverse effects when an organism, system, or (sub)population is exposed to that agent. http://www.who.int/
299 hygienic practice The set of practices associated with the preservation of health and healthy living. Hygiene is a concept related to medicine, as well as to personal and professional care practices related to most aspects of living, although it is most often associated with cleanliness and preventative measures.
300 heart A hollow muscular organ that receives the blood from the veins and propels it into the arteries. Stedman's Medical Dictionary