전자파 안전정보 용어 1

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