|Medical Dictionary - Dictionary of Medicine and Human Biology|
ε, capital: E
Symbols for oxidation-reduction potential.
A straight rod-shaped gram-negative bacterium (Escherichia coli of the family Enterobacteriaceae) that is used in public health as an indicator of fecal pollution (as of water or food) and in medicine and genetics as a research organism and that occurs in various strains that may live as harmless inhabitants of the human lower intestine or may produce a toxin causing intestinal illness, e.g., one million acid-resistant E. coli per gram of feces.
Symbol for estradiol.
Symbol for estrone.
Abbreviation for energy of activation.
Abbreviation for experimental allergic encephalitis.
Harry, U.S. physician and cell biologist, 1905–1992. See E. basal medium, E. minimum essential medium.
Watt W., 20th century U.S. otolaryngologist.
Henry, English ophthalmologist, 1852–1913. See E. disease.
ear (er) [TA]
The organ of hearing: composed of the external e., which includes the auricle and the external acoustic, or auditory, meatus; the middle e., or the tympanic cavity with its ossicles; and the internal e. or inner e., or labyrinth, which includes the semicircular canals, vestibule, and cochlea. SEE ALSO: auricle. SYN: auris [TA] . [A.S. eáre]
Pain in the ear. SYN: otalgia, otodynia.
The middle ear. Cf.:tympanic membrane. SYN: tympanum.
Wilton R., U.S. pathologist, 1902–1964. See E. L fibrosarcoma, E. solution.
A part of a device inserted into the external auditory canal to deliver sound to the ear.
Generic term for occlusive devices for the external auditory canal for protection of hearing against noise-induced hearing loss or to prevent water from getting into the ear. SEE ALSO: hearing protectors, under protector.
1. To take solid food. 2. To chew and swallow any substance as one would food. 3. To corrode. [A.S. etan]
Lee M., U.S. neurologist, 1905–1958. See E.-Lambert syndrome.
Monroe A., U.S. microbiologist, *1904. See E. agent.
Abbreviation for elementary bodies (1) , under body.
Hermann, German, 1850–1909. See E. test.
Karl J., German physician, 1835–1926. See E. bacillus, E. lines, under line, E. perithelium.
Victor von. See von E..
Removal of loose fragments of bone from a wound. [L.]
Twisting a polyp on its stalk to cause atrophy. [Fr.]
Wilhelm, German physician, 1836–1912. See E. anomaly, E. disease, E. sign, Armanni-E. change, Armanni-E. kidney, Pel-E. disease, Pel-E. fever.
Abbreviation for electron beam tomography.
Formation of water vapor bubbles in the tissues brought on by an extreme reduction in barometric pressure; occurs if the body is exposed to pressures above an altitude of 63,000 feet, or if a diver rises rapidly from a great depth to the surface. [L. ebullire, to boil out]
A tissue resembling ivory in outward appearance or structure. [L. ivory] e. dentis SYN: dentine.
A change in exposed subchondral bone in degenerative joint disease in which it is converted into a dense substance with a smooth surface like ivory. SYN: bone sclerosis. [L. eburneus, of ivory] e. of dentin a condition observed in arrested dental caries wherein decalcified dentin is burnished and takes on a polished, often brown-stained appearance.
Resembling ivory, especially in color.
Increased density and hardness of dentin, which may occur after the dentin is exposed. [L. eburneus, of ivory, + G. -itis, inflammation]
Abbreviation for Epstein-Barr virus.
Abbreviation for Enzyme Commission of the International Union of Biochemistry, used in conjunction with a unique number to define a specific enzyme in the Enzyme Commission's list [Enzyme Nomenclature] (1984); e.g., E. 126.96.36.199 defines an alcohol dehydrogenase and E. 188.8.131.52 defines aspartate aminotransferase, also known as glutamic-oxalacetic transaminase (GOT).
Out of, away from. [G.]
A type of retractor. [Fr. écarter, to separate]
Tailless. [L. e- priv. + cauda, tail]
1. Abnormal or peculiar in ideas or behavior. SYN: erratic (1) . 2. Proceeding from a center. Cf.:centrifugal (2) . 3. SYN: peripheral. [G. ek, out, + kentron, center]
Abnormal epiphysial development from eccentric centers of ossification. [G. ek, out + kentron, center, + chondros, cartilage, + plasis, a molding]
Pressure exerted from within outward. [G. ek, out, + kentron, center, + piesis, pressure]
1. A cartilaginous neoplasm arising as an overgrowth from normally situated cartilage, as a mass protruding from the articular surface of a bone, in contrast to enchondroma. 2. An enchondroma which has burst through the shaft of a bone and become pedunculated. SYN: ecchondrosis. [G. ek, from, + chondros, cartilage, + -oma, tumor]
ecchordosis physaliphora (ek-kor-do′sis fiz-al-e-for′-me-a)
A notochordal rest of the cranial clivus that may form a small tumor.
A slight hematoma following a bruise. [G. ek, out, + chymos, juice, + -oma, tumor]
A purplish patch caused by extravasation of blood into the skin, differing from petechiae only in size (larger than 3 mm diameter). [G. ekchymosis, e., fr. ek, out, + chymos, juice] bilateral medial orbital ecchymoses SYN: raccoon eyes, under eye. Tardieu ecchymoses subpleural and subpericardial petechiae or ecchymoses (or both), as observed in the tissues of persons who have been strangled, or otherwise asphyxiated. SYN: Tardieu petechiae, Tardieu spots.
Relating to an ecchymosis.
See Paget-E. stain.
1. SYN: exocrine (1) . 2. Denoting the flow of sweat from skin glands unconnected to hair follicles. [G. ek-krino, to secrete]
The branch of physiology and of anatomy concerned with the secretions and the secreting (exocrine) glands. [G. ekdrino, to secrete, + logos, study]
1. The removal of waste products. 2. Any waste product; excrement. [G. separation]
1. Promoting the expulsion of waste matters. 2. An agent that promotes excretion.
SYN: ectopic pregnancy. [G. ek, out, + kyesis, pregnancy]
Denoting a disease brought into a region from without. [G. ekdemos, foreign, from home, fr. demos, people]
A morbid tendency to undress to produce sexual desire in others. [fr. G. ekdyo, to remove one's clothes]
Desquamation, sloughing, or molting as a necessary phenomenon to permit growth in arthropods and skin renewal in amphibians and reptiles. [G. ekdysis, shedding]
A person who engages in ecdysiasm.
Abbreviation for extracellular fluid.
Abbreviation for eosinophil chemotactic factor of anaphylaxis.
Abbreviation for extracellular fluid volume.
Abbreviation for electrocardiogram.
ecgonine (ek′go-nen, -nin)
The important part of the cocaine molecule; a topical anesthetic; basis of many coca alkaloids. e. benzoate SYN: benzoylecgonine.
Echidnophaga gallinacea (ek-id-nof′a-ga gal-i-na′se-a)
The sticktight flea, a serious pest of poultry in subtropical America; also frequently attacks domestic mammals and humans.
Prickly, spiny. [G. echinos, hedgehog, sea urchin]
A genus of digenetic flukes (family Echinostomatidae), particularly common in wading and fish-eating birds; the species E. perfoliatus var. japonicus is reported as a rare intestinal parasite of humans in Japan. [echino- + G. chasma, open mouth]
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