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electroradiology
Obsolete term for the use of electricity and x-ray in treatment.
electroradiometer
A modified electroscope designed for the differentiation of radiant energy. [ electro- + L. radius, ray, + G. metron, measure]
electroretinogram
A record of the retinal action currents produced in the retina by an adequate light stimulus. [ electro- + retina + G. gramma, something written]
electroretinography
The recording and study of the retinal action currents.
Electroretinography (ERG)
A test in which the electrical potentials generated by the retina of the eye are measured when it is stimulated by light. In an ERG, an electrode is placed on the cornea at the ...
electroscission
Division of tissues by means of an electrocautery knife. [ electro- + L. scissio, a splitting, fr. scindo, to split]
electroscope
An instrument for the detection of electrical charges or ionization of gas by beta or x-rays; consists of two strips of gold leaf suspended from an insulated conductor and ...
electroshock
See e. therapy.
electrosol
SYN: colloidal metal.
electrospectrography
The recording, study, and interpretation of electroencephalographic wave patterns.
electrospinogram
The record obtained by electrospinography.
electrospinography
The recording of spontaneous electrical activity of the spinal cord.
electrostenolysis
The precipitation of metals in membrane pores in the course of electrolysis.
electrostethograph
Electrical instrument that amplifies or records the respiratory and cardiac sounds of the chest. [ electro- + G. stethos, chest, + grapho, to record]
electrostriction
1. The contraction in volume in a protein solution during proteolysis due to the formation of new charged groups. 2. The reversible change in dimensions of a substance or ...
Electrosurgery
Instead of using a scalpel, the surgeon utilizes a heat-generating electrical device to burn or vaporize tissue in order to remove it and minimize and halt bleeding. * * ...
electrotaxis
Reaction of plant or animal protoplasm to either an anode or a cathode. SEE ALSO: tropism. SYN: electrotropism, galvanotaxis, galvanotropism. [ electro- + G. taxis, ...
electrothanasia
SYN: electrocution. [ electro- + G. thanatos, death]
electrotherapeutics, electrotherapy
Use of electricity in the treatment of disease.
electrotherm
A flexible sheet of resistance coils used for applying heat to the surface of the body. [ electro- + G. therme, heat]
electrotome
An electric scalpel.
electrotomy
SYN: electrosurgery. [ electro- + G. tome, incision]
electrotonic
Relating to electrotonus.
electrotonus
Changes in excitability and conductivity in a nerve or muscle cell caused by the passage of a constant electric current. SEE ALSO: catelectrotonus, anelectrotonus. SYN: ...
electrotropism
SYN: electrotaxis. [ electro- + G. trope, a turning]
electuary
SYN: confection. [G. eleikton, a medicine that melts in the mouth, fr. ekleicho, to lick up]
eledoisin
An undecapeptide toxin that is formed in the venom gland of cephalopods of the genus Eledone and causes vasodilation and contraction of extravascular smooth muscle.
eleidin
A refractile and weakly staining keratin present in the cells of the stratum lucidum of the palmar and plantar epidermis.
element
1. A substance composed of atoms of only one kind, i.e., of identical atomic ( proton) number, that therefore cannot be decomposed into two or more elements and that can lose its ...
eleo-
Oil. SEE ALSO: oleo-. [G. elaion, olive oil]
eleoma
SYN: lipogranuloma. [G. elaion, oil, + -oma, tumor]
eleometer
SYN: oleometer. [G. elaion, oil, + metron, measure]
eleopathy
A rare condition in which there is boggy swelling of the joints, said to be due to a fatty deposit following contusion; or possibly a condition resulting from the injection of ...
eleostearic acid
An 18-carbon fatty acid with three double bonds (at carbons 9, 11, and 13); isomeric with linolenic acid; found in plant fats.
eleotherapy
SYN: oleotherapy. [G. elaion, oil]
Elephantiasis
Lymphatic filariasis, a mosquito-borne parasitic disease caused by tiny thread-like worms that live in the human lymph system. Best known from dramatic photos of people with ...
elevation
SYN: torus (1). - e. of levator palati SYN: torus levatorius. - tactile elevations [TA] small areas in the skin of the palms and soles especially rich in sensory nerve ...
elevator
1. An instrument for prying up a sunken part, as the depressed fragment of bone in fracture of the skull, or for elevating tissues from their attachment to bone. 2. A surgical ...
Eleventh cranial nerve
The eleventh cranial nerve is the accessory nerve. The twelve cranial nerves, the accessory nerve included, emerge from or enter the skull (the cranium) as opposed to the spinal ...
eliminant
1. An evacuant that promotes excretion or the removal of waste. 2. An agent that increases excretion.
elimination
Expulsion; removal of waste material from the body; the getting rid of anything. [L. elimino, pp. -atus, to turn out of doors, fr. limen, threshold] - carbon dioxide e. ( VCO2) ...
elinguation
SYN: glossectomy. [L. e, out, + lingua, tongue]
elinin
A lipoprotein fraction of red blood cells that contains the Rh and A and B factors.
ELISA
ELISA stands for "enzyme-linked immunosorbent assay." This is a rapid immunochemical test that involves an enzyme (a protein that catalyzes a biochemical reaction). It also ...
elixir
A clear, sweetened, hydroalcoholic liquid intended for oral use; elixirs contain flavoring substances and are used either as vehicles or for the therapeutic effect of the active ...
Ellik
Milo, U.S. urologist, *1905. See E. evacuator.
Elliot
Robert Henry, British ophthalmologist, 1864–1936. See E. operation. John W., U.S. surgeon, 1852–1925. See E. position.
Elliott
Thomas R., British physician, 1877–1961. See E. law.
ellipsis
Omission of words or ideas, leaving the whole to be completed by the reader or listener. [G. ek-, out, + leipsis, leaving]
ellipsoid
1. A spherical or spindle-shaped condensation of phagocytic macrophages in a reticular stroma investing the wall of the splenic arterial capillaries shortly before they ...
Elliptocytosis
Hematologic disorder characterized by elliptically shaped red blood cells (elliptocytosis) with variable breakup of red cells (hemolysis) and varying degrees of anemia. Inherited ...
Ellis
Richard W.B., English physician, 1902–1966. See E.-van Creveld syndrome.
Ellis-van Creveld syndrome
A type of short stature with striking shortening of the ends of the extremities (arms and legs), polydactyly (extra digits), fusion of bones in the wrist, dystrophy (abnormal ...
Ellison
Edwin H., U.S. physician, 1918–1970. See Zollinger-E. syndrome, Zollinger-E. tumor.
Ellsworth
Read McLane, U.S. physician, 1899–1970. See E.- Howard test.
Eloesser
Leo, U.S. thoracic surgeon, 1881–1976. See E. flap, E. procedure.
elongation
1. The increase in the gauge length measured after fracture in tension within the gauge length, expressed in percentage of original gauge length. 2. The lengthening of a ...
Elschnig
Anton, German ophthalmologist, 1863–1939. See E. pearls, under pearl, E. spots, under spot, Koerber-Salus-E. syndrome.
eluant
The material that has been eluted.
eluate
The solution emerging from a column or paper in chromatography. SEE ALSO: elution.
eluent
The mobile phase in chromatography. SEE ALSO: elution. SYN: developer (2), elutant.
elutant
SYN: eluent.
elute
To perform or accomplish an elution. SYN: elutriate.
elution
1. The separation, by washing, of one solid from another. 2. The removal, by means of a suitable solvent, of one material from another that is insoluble in that solvent, as in ...
elutriate
SYN: elute.
elutriation
SYN: elution. [L. elutrio, pp. -atus, to wash out, decant, fr. e-luo, to wash out]
elytro-
The vagina. SEE ALSO: colpo-, vagino-. [G. elytron, sheath (vagina)]
EM (electron microscope)
A microscope in which an electron beam replaces light to form the image. EM stands for electron microscope (the device) and for electron microscopy (the technique and field). EM ...
em-
See en-.
EMA
Abbreviation for epithelial membrane antigen.
emaciation
Becoming abnormally thin from extreme loss of flesh. SYN: wasting (1). [L. e-macio, pp. -atus, to make thin]
emaculation
Removal of spots or other blemishes from the skin. [L. emaculo, pp. -atus, to clear from spots, fr. e-, out, + macula, spot]
emanation
1. Any substance that flows out or is emitted from a source or origin. 2. The radiation from a radioactive element. [L. e- mano, pp. -atus, to flow out] - actinium e. radon-219. ...
emanatorium
An institution where, formerly, radiation treatment now considered dangerous (using radioactive waters and the inhalation of radium emanations) was administered.
emancipation
In embryology, delimitation of a specific area in an organ-forming field, giving definite shape and limits to the organ primordium.
emanon
Obsolete term once used to denote all radon isotopes collectively, when the term radon was restricted to the isotope radon-222, the naturally occurring intermediate of the ...
emanotherapy
An obsolete treatment of various diseases by means of radium emanation (radon), or other emanation.
emarginate
Nicked; with broken margin. SYN: notched. [L. emargino, to deprive of its edge, fr. e- priv. + margo (margin-), edge]
emargination
SYN: notch.
emasculation
Castration of the male by removal of the testes and/or penis. SYN: eviration (1). [L. emasculo, pp. -atus, to castrate, fr. e- priv. + masculus, masculine]
EMB
Abbreviation for eosin-methylene blue. See eosin- methylene blue agar.
Embadomonas
Old name for Retortamonas. [G. embadon, surface, + monas, unit, monad]
embalm
To treat a dead body with balsams or other chemicals to preserve it from decay. [L. in, in, + balsamum, balsam]
Embden
Gustav G., German biochemist, 1874–1933. See E. ester, Robison-E. ester, E.- Meyerhof pathway, E.-Meyerhof- Parnas pathway.
embed
To surround a pathological or histological specimen with a firm and sometimes hard medium such as paraffin, wax, celloidin, or a resin, in order to make possible the cutting of ...
embelin
The active principle from the dried fruit of Embelia ribes and E. robusta (family Myrsinaceae); has been used as a teniacide.
emboitement
SYN: preformation theory. [Fr., encasement]
embole
1. Reduction of a limb dislocation. SYN: embolia. 2. Formation of the gastrula by invagination. SYN: emboly. [G. e., insertion]
embolectomy
Removal of an embolus. [G. embolos, a plug (embolus), + ektome, excision]
embolemia
The presence of emboli in the circulating blood. [G. embolos, a plug (embolus), + haima, blood]
Emboli
: Something that travels through the bloodstream, lodges in a blood vessel and blocks it. Examples of emboli are a detached blood clot, a clump of bacteria, and foreign material ...
embolia
SYN: embole (1).
embolic
Relating to an embolus or to embolism.
emboliform
Shaped like an embolus. [G. embolos, plug (embolus), + L. forma, form]
Embolism
The obstruction of a blood vessel by a foreign substance or a blood clot blocking the vessel. Something travels through the bloodstream, lodges in a vessel and plugs it. Foreign ...
Embolism, paradoxical
Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel first to the right side of the heart and, normally, then to the lungs ...
Embolism, pulmonary
The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood clot, usually from the leg, or foreign material causing sudden closure of the vessel. ...
Embolization
: A treatment that clogs small blood vessels and blocks the flow of blood, such as to a tumor. * * * 1. The formation and release of an embolus into the circulation. 2. ...
embolomycotic
Relating to or caused by an infective embolus. [G. embolos, a plug (embolus), + mykes, fungus]
embolotherapy
Occlusion of arteries by insertion of blood clots, Gelfoam, coils, balloons, etc., with an angiographic catheter; used for control of inoperable hemorrhage or preoperative ...
Embolus
: Something that travels through the bloodstream, lodges in a blood vessel and blocks it. Examples of emboli are a detached blood clot, a clump of bacteria, and foreign material ...
emboly
SYN: embole (2).
embouchement
The opening of one blood vessel into another. [Fr.]
embrasure
In dentistry, an opening that widens outwardly or inwardly; specifically, that space adjacent to the interproximal contact area that spreads toward the facial, gingival, lingual, ...
embrocation
Rarely used term for liniment or for the application of a liniment. [G. embroche, a fomentation]
embry-
See embryo-.
Embryo
The organism in the early stages of growth and differentiation from fertilization to, in humans, the beginning of the third month of pregnancy. After that point in time, it is ...
embryo-, embry-
The embryo. [G. embryon, a young one]
embryoblast
SYN: inner cell mass. [embryo- + G. blastos, germ]
embryocardia
A condition in which the cadence of the heart sounds resembles that of the fetus, the first and second sounds becoming alike and evenly spaced; a sign of serious myocardial ...
embryogenesis
That phase of prenatal development involved in establishment of the characteristic configuration of the embryonic body; in humans, e. is usually regarded as extending from the ...
embryogenic, embryogenetic
Producing an embryo; relating to the formation of an embryo.
embryogeny
The origin and growth of the embryo.
embryoid
SYN: embryonoid.
embryologist
One who specializes in embryology.
embryology
Science of the origin and development of the organism from fertilization of the ovum to the end of the eighth week. Sometimes used to include all stages of prenatal life. ...
embryoma
SYN: embryonal tumor.
embryomorphous
1. Relating to the formation and structure of the embryo. 2. Applied to structures or tissues in the body similar to those in the embryo, or embryonal rests. [embryo- + G. ...
embryonal
Relating to an embryo. SYN: embryonate (1).
embryonate
1. SYN: embryonal. 2. Containing an embryo. 3. Impregnated.
embryonic
Of, pertaining to, or in the condition of an embryo.
embryoniform
SYN: embryonoid.
embryonization
Reversion of a cell or tissue to an embryonic form.
embryonoid
Resembling an embryo or a fetus. SYN: embryoid, embryoniform. [embryo- + G. eidos, appearance]
embryony
The forming of an embryo.
embryopathy
A morbid condition in the embryo or fetus. SYN: fetopathy. [embryo- + G. pathos, disease]
embryophore
A membrane or wall around the hexacanth embryo of tapeworms, forming the inner portion of the eggshell. In the genus Taenia, the e. is exceptionally thick, with radial ...
embryoplastic
1. Producing an embryo. 2. Relating to the formation of an embryo. [embryo- + G. plasso, to form]
embryotomy
Any mutilating operation on the fetus to make possible its removal when delivery is impossible by natural means. [embryo- + G. tome, cutting]
embryotoxicity
Injury to the embryo, which may result in death, growth retardation, or abnormal development of a part that may affect either its structure or function.
embryotoxon
Congenital opacity of the periphery of the cornea, a feature of osteogenesis imperfecta. [embryo- + G. toxon, bow] - anterior e. SYN: arcus senilis. - posterior e. a common ...
embryotroph
1. Nutritive material supplied to the embryo during development. Cf.:hemotroph, histotroph. 2. In the implantation stages of deciduate placental mammals, fluid adjacent to the ...
embryotrophic
Relating to any process or agency involved in the nourishment of the embryo.
embryotrophy
The nutrition of the embryo. [embryo- + G. trophe, nourishment]
emedullate
To extract any marrow. [L. e-, from, + medulla, marrow]
emeiocytosis
SYN: exocytosis (2). [L. emitto, to send forth, + G. kytos, cell, + -osis, condition]
emergence
1. Recovery of normal function following a period of unconsciousness, especially that associated with a general anesthetic. 2. See property e.. - property e. properties in a ...
emergency
A patient's condition requiring immediate treatment. [L. e-mergo, pp. -mersus, to rise up, emerge, fr. mergo, to plunge into, dip]
Emergency department
The department of a hospital responsible for the provision of medical and surgical care to patients arriving at the hospital in need of immediate care. Emergency department ...
Emergency medical technician
A person trained in the performance of the procedures required in emergency medical care. You are most likely to find an EMT working with a mobile emergency response team, such ...
Emergency supplies kit
You and your family can cope best by preparing for disaster before it strikes. One way to prepare is by assembling a Disaster Supplies Kit. Once disaster hits, you won't have time ...
emergent
1. Arising suddenly and unexpectedly, calling for quick judgment and prompt action. 2. Coming out; leaving a cavity or other part.
Emery
Alan E. H., Contemporary British physician. See E.-Dreifuss muscular dystrophy.
emery
An abrasive containing aluminum oxide and iron. [O.Fr. emeri, fr. L.L. smericulum, fr. G. smiris]
Emesis
: Vomiting. An emesis basin is usually kept handy for surgery patients recovering from general anesthesia since nausea and vomiting are common in that situation. The word ...
Emetic
Something that causes emesis, that makes you vomit. For example, ipecac. The word “emetic” comes from the Greek “emein” meaning “to vomit.” * * * 1. Relating to or ...
emetine
The principal alkaloid of ipecac, used as an emetic; its salts are used in amebiasis; available as the hydrochloride.
emetocathartic
1. Both emetic and cathartic. 2. An agent that causes vomiting and purging of the lower intestines.
emetogenic
Having the capacity to induce emesis (vomiting), a common property of anticancer agents, narcotics, and amorphine.
emetogenicity
The property of being emetogenic.
Emetophobia
An abnormal and persistent fear of vomiting. Sufferers of emetophobia experience undue anxiety even though they realize their fear is irrational. They usually are especially ...
EMF
Abbreviation for electromotive force.
EMG
Abbreviation for electromyogram.
emiction
Rarely used term for urination.
emigration
The passage of white blood cells through the endothelium and wall of small blood vessel s. [L. e-migro, pp. -atus, to emigrate]
eminence
A circumscribed area raised above the general level of the surrounding surface, particularly on a bone surface. SYN: eminentia [TA]. [L. eminentia] - abducens e. SYN: facial ...
eminentia
SYN: eminence. [L. prominence, fr. e-mineo, to stand out, project] - e. abducentis SYN: facial colliculus. - e. arcuata [TA] SYN: arcuate eminence. - e. articularis ossis ...
emiocytosis
SYN: exocytosis (2). [L. emitto, to send forth, + G. kytos, cell, + -osis, condition]
emissarium
SYN: emissary vein. [L. an outlet, fr. e-mitto, pp. -missus, to send out] - e. condyloideum SYN: condylar emissary vein. - e. mastoideum SYN: mastoid emissary vein. - e. ...
emissary
1. Relating to, or providing, an outlet or drain. 2. SYN: e. vein. [see emissarium]
emission
A discharge; referring usually to a discharge of the male internal genital organs into the internal urethra; the contents of the organs, including sperm cells, prostatic fluid, ...
emissivity
The giving off of heat rays; a perfect “black body” has an e. of 1, a highly polished metallic surface may have an e. as low as 0.02.
EMIT
Abbreviation for enzyme-multiplied immunoassay technique.
Emmet
Thomas A., U.S. gynecologist, 1828–1919. See E. needle, E. operation.
emmetropia
The state of refraction of the eye in which parallel rays, when the eye is at rest, are focused exactly on the retina. [G. emmetros, according to measure, + ops, eye]
emmetropic
Pertaining to or characterized by emmetropia.
emmetropization
The process by which the refraction of the anterior ocular segment and the axial length of the eye tend to balance each other to produce emmetropia.
Emmonsia
E. parva var. crescens the main fungal species causing adiaspiromycosis in animals and the only agent of human adiaspiromycosis; infection is acquired by inhaling conidia from ...
Emmonsiella capsulata
SYN: Ajellomyces capsulatum.
emodin
A crystalline substance ( cathartic) found in rhubarb, senna, cascara sagrada, and other purgative drugs. SYN: archin, frangulic acid.
emollient
1. Soothing to the skin or mucous membrane. 2. An agent that softens the skin or soothes irritation in the skin or mucous membrane. SYN: malactic. [L. emolliens, pres. p. of e- ...
emotion
A strong feeling, aroused mental state, or intense state of drive or unrest, which may be directed toward a definite object and is evidenced in both behavior and in psychologic ...
emotional
Relating to or marked by an emotion.
Emotional child abuse
Emotional child abuse is the third most frequently reported form of child abuse (after child neglect and physical child abuse), accounting 17% of all cases of child abuse. ...
emotiovascular
Relating to the vascular changes, such as pallor and blushing, caused by emotions of various kinds.
empasm, empasma
A dusting powder. [G. empasma, fr. em-passo, to sprinkle on]
empathic
Relating to or marked by empathy.
empathize
To feel empathy in relation to another person; to put oneself in another's place.
empathy
1. The ability to intellectually and emotionally sense the emotions, feelings, and reactions that another person is experiencing and to effectively communicate that understanding ...
emperipolesis
Active penetration of one cell by another, which remains intact; observed in tissue cultures in which leukocytes have entered macrophages and subsequently left. [G. en (em), ...
emphraxis
1. A clogging or obstruction of the mouth of the sweat gland. 2. An impaction. [G. a stoppage]
Emphysema
1) A lung condition featuring an abnormal accumulation of air in the lung's many tiny air sacs, a tissue called alveoli. As air continues to collect in these sacs, they become ...
emphysematous
Relating to or affected with emphysema.
empiric
1. SYN: empirical. 2. A member of a school of Graeco-Roman physicians, late BC to early AD, who placed their confidence in and based their practice purely on experience, ...
Empiric risk
The chance that a disease will occur in a family based upon experience (past history, medical records, etc.) rather than theory.
Empirical
Based on experience and observation, rather than systematic logic. Experienced physicians often use empirical reasoning to make diagnoses, based on having seen many cases over ...
empiricism
A looking to experience as a guide to practice or to the therapeutic use of any remedy.
emporiatrics
The specialty of travel medicine, dealing with diseases that travelers can acquire, especially in the tropics. [G. emporion, market, fr. emporos, traveler, merchant, + (techne) ...
emprosthotonos
A tetanic contraction of the flexor muscles, curving the back with concavity forward. [G. emprosthen, forward, + tonos, tension]
empyectomy
Resection of an empyema and its capsule.
empyema
Pus in a body cavity; when used without qualification, refers specifically to pyothorax. [G. e., suppuration, fr. en, in, + pyon, pus] - e. benignum SYN: latent e.. - e. of ...
empyemic
Relating to empyema.
empyesis
A pustular eruption. [G. suppuration]
empyocele
A suppurating hydrocele; a collection of pus in the scrotum. [G. en, in, + pyon, pus, + kele, tumor]
empyreuma
Characteristic odor given off by organic substances when charred or subjected to destructive distillation in closed vessels. [G. a banked fire]
emu
Abbreviation for electromagnetic unit.
emulgent
Denoting a straining, extracting, or purifying process. [L. e- mulgeo, pp. -mulsus, to milk out, drain out]
emulsifier
An agent, such as gum arabic or the yolk of an egg, used to make an emulsion of a fixed oil. Soaps, detergents, steroids, and proteins can act as emulsifiers; they stabilize ...
emulsify
To make in the form of an emulsion.
emulsin
1. A preparation or ferment derived from almonds, that contains β-glucosidase. 2. Sometimes used as a synonym for β-glucosidase.
emulsion
A system containing two immiscible liquids in which one is dispersed, in the form of very small globules (internal phase), throughout the other (external phase) ( e.g., oil in ...
emulsive
1. Denoting a substance that can be made into an emulsion. 2. Denoting a substance, such as a mucilage, by which a fat or resin can be emulsified. 3. Making soft or pliant. 4. ...
emulsoid
A colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on and absorb a certain quantity of the fluid in which they are ...
emuresis
A condition in which urinary excretion and intake of water act to produce an absolute hydration of the body. SEE ALSO: ecuresis. [G. en (em), in, + ouresis, urination]
emylcamate
A mild sedative, used to control tension and anxiety and to relieve pain and muscular spasm.
en bloc
In a lump; as a whole; used to refer to autopsy techniques in which visceral organs are removed in large blocks allowing the prosector to retain a continuity in organ ...
en grappe
Denoting the grapelike cluster arrangement of microconidia of certain dermatophytes. [Fr. en, in, + grappe, bunch of grapes]
en thyrse
Microconidia of certain dermatophytes arranged singly along both sides of a hypha. [Fr., fr. G. en-, in, + thyrsos, a stalk, wand]
en-
In; appears as em- before b, p, or m. [G.]
enalapril maleate
A prodrug for enalaprilat, an angiotensin converting enzyme inhibitor used as an anti-hypertensive agent and in the treatment of congestive heart failure.
enalaprilat
The active metabolite of enalapril, an ACE inhibitor used to treat hypertension and congestive heart failure.
enamel
The hard glistening substance covering the exposed portion of the tooth. In its mature form, it is composed of an inorganic portion made up of 90% hydroxyapatite and 6-8% ...
enamelins
A class of proteins that form the organic matrix of mature tooth enamel. [enamel + -in]
enameloblast
SYN: ameloblast.
enamelogenesis
SYN: amelogenesis. - e. imperfecta SYN: amelogenesis imperfecta.
enameloma
A developmental anomaly in which there is a small nodule of enamel below the cementoenamel junction, usually at the bifurcation of molar teeth. SYN: enamel drop, enamel nodule, ...
enamelum
SYN: enamel.
enanthal
SYN: heptanal.
enanthate
USAN-approved contraction for heptanoate, CH3(CH2)5COO-.
Enanthem
A rash inside the body. An example: the spots in measles (Koplik’s spots) inside the mouth that look like a tiny grains of white sand surrounded by a red ring. By contrast, a ...
enanthem, enanthema
A mucous membrane eruption, especially one occurring in connection with one of the exanthemas. [G. en, in, + anthema, bloom, eruption, fr. antheo, to bloom]
enantio-
Combining form meaning opposite or reversed. [G. enantios, opposite]
enantiomer
One of a pair of molecules that are nonsuperimposable mirror images of each other; neither molecule has an internal plane of symmetry. SYN: optic antipode. [ enantio- + G. ...
enantiomeric
Pertaining to enantiomerism.
enantiomerism
In chemistry, isomerism in which the molecules in their configuration are related to one another like an object and its mirror image (enantiomers) and, consequently, are not ...
enantiomorph
An enantiomer in crystal form.
enantiomorphic
1. Relating to two objects, each of which is the mirror image of the other. 2. In chemistry, relating to isomers, the optical activities of which are equal in magnitude but ...
enantiomorphism
The relation of two objects similar in form but not superimposable, as the two hands or an object and its mirror image. [ enantio- + G. morphe, form]
enantiomorphous
SYN: enantiomorphic.
enarthrodial
Relating to an enarthrosis.
enarthrosis
ball and socket joint. [G. en-arthrosis, a jointing where the ball is deep set in the socket]
encainide hydrochloride
An anti-arrhythmic.
encapsulated
Enclosed in a capsule or sheath. SYN: encapsuled.
encapsulation
Enclosure in a capsule or sheath. [L. in + capsula, dim. of capsa, box]
encapsuled
SYN: encapsulated.
encarditis
SYN: endocarditis.
encelitis, enceliitis
Obsolete term for inflammation of any of the abdominal viscera. [G. en, in, + koilia, belly, + -itis, inflammation]
encephal-
See encephalo-.
encephalalgia
SYN: headache. [encephalo- + G. algos, pain]
encéphale isolé
An animal with its caudal medulla transected and its respiration maintained artificially; it remains alert, has sleep-wake cycles, normal pupillary reactions, and a normal ...
encephalemia
SYN: brain congestion. [encephalo- + G. haima, blood]
encephalic
Relating to the brain, or to the structures within the cranium.
encephalitic
Relating to encephalitis.
Encephalitis
Inflammation of the brain. Encephalitis occurs, for example, in 1 in 1,000 cases of measles. It may start (up to 3 weeks) after onset of the measles rash and present with high ...
Encephalitis, arboviral
Encephalitis (which is inflammation of the brain) that is due to infection by an arbovirus (an arthropod-borne virus). The arboviruses are maintained through transmission between ...
Encephalitis, LAC
LaCrosse encephalitis, one of the main types of encephalitis caused by an arbovirus in the US. An arbovirus is a virus that is arthropod-borne (carried by a mosquito, tick or ...
Encephalitis, LaCrosse
One of the main types of encephalitis caused by an arbovirus in the US. An arbovirus is a virus that is arthropod-borne (carried by a mosquito, tick or another kind of ...
Encephalitis, Nipah virus
Brain inflammation (encephalitis) due to the Nipah virus that infects pigs and people. Nipah is the name of the first village the virus struck near Kuala Lumpur in Malaysia. (The ...
Encephalitis, Rasmussen
A rare progressive neurological disorder that is characterized by intractable seizures and progressive neurologic deterioration. To be more precise, there are frequent and ...
Encephalitis, St. Louis
A disease caused by a virus (first observed in Illinois in 1932) transmitted from birds to the common Culex mosquito to people. St. Louis encephalitis occurs typically in the ...
Encephalitis, West Nile
A febrile disease caused by the West Nile virus that is transmitted from birds to the common Culex mosquito and then to people. The virus is named after the area it was first ...
encephalitogen
An agent which evokes encephalitis, particularly with reference to the antigen which produces experimental allergic encephalomyelitis. [encephalitis + G. -gen, producing]
encephalitogenic
Producing encephalitis; typically by hypersensitivity mechanisms. See encephalitogen.
Encephalitozoon
A genus of protozoan parasites, formerly considered part of the family Toxoplasmatidae, class Sporozoea, but now recognized as a member of the protozoan phylum Microspora, ...
encephalization
SYN: corticalization.
encephalo-, encephal-
The brain. Cf.:cerebro-. [G. enkephalos, brain]
encephalocele
A congenital gap in the skull with herniation of brain substance. SYN: craniocele, cranium bifidum, bifid cranium. [encephalo- + G. kele, hernia] - basal e. a defect in the ...
encephalocystocele
SYN: hydrencephalocele.
encephaloduroarteriosynangiosis
SYN: duraencephalosynangiosis.
encephalodynia
SYN: headache. [encephalo- + G. odyne, pain]
encephalodysplasia
Any congenital abnormality of the brain. [encephalo- + G. dys, bad, + plastos, formed]
encephalogram
The record obtained by encephalography. [encephalo- + G. gramma, a drawing]
encephalography
Obsolete technique of radiographic representation of the brain. See pneumoencephalography. [encephalo- + G. grapho, to write] - gamma e. imaging of the encephalon by the ...
encephaloid
Resembling brain substance; denoting a carcinoma of soft, brainlike consistency, with reference to gross features. [encephalo- + G. eidos, resemblance]
encephalolith
A concretion in the brain or one of its ventricles. SYN: cerebral calculus. [encephalo- + G. lithos, stone]

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