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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

epizoic commensalism
Synonym for phoresis ... Synonym: electrophoresis. ... 2. A biological association in which one organism is transported by another, as in the attachment of the eggs of Dermatobia hominis, a human and cattle botfly, to the legs of a mosquito, which transports them to the human, cattle, or other host in which the botfly larvae can develop. ... Synonym: …

epizoology
Synonym: epizootiology. ... Origin: epi-+ G. Zoon, animal, + logos, study ... (05 Mar 2000) ...

epizootic
<zoology> Veterinary equivalent of an epidemic. ... (18 Nov 1997) ...

epizootic bovine abortion
An infectious disease of cattle transmitted by the tick Ornithodoros coriaceus and manifested as abortion or weak calves at birth; occurs in the foothills of California, Nevada, and Oregon. ... Synonym: foothill abortion. ... (05 Mar 2000) ...

epizootic cellulitis
Synonym for equine viral arteritis ... A highly contagious viral disease caused by equine arteritis virus, member of the family Togaviridae, and characterised by a high fever and respiratory and digestive tract signs; the essential lesions involve smaller arteries, with necrosis which may be followed by thrombosis, infarction, haemorrhages, and oede …

epizootic lymphangitis
Lymphangitis primarily involving the lymph channels of the skin of the legs and chest of horses and mules in Europe, Asia, and Africa; the causative agent is Histoplasma capsulatum var. Farciminosum. ... Synonym: lymphangitis epizootica. ... (05 Mar 2000) ...

epizootiology
Epidemiology of disease in animal populations. ... Synonym: epizoology. ... Origin: epi-+ G. Zoon, animal, + logos, study ... (05 Mar 2000) ...

epluchage
Rarely used term for the removal of all contaminated tissue in infected wounds. ... Origin: F. Picking, cleaning ... (05 Mar 2000) ...

epn
<chemical> An organothiophosphorus cholinesterase inhibitor that is used as an insecticide and as a acaricide. ... Pharmacological action: cholinesterase inhibitor, insecticide, organothiophosphate. ... Chemical name: Phosphonothioic acid, phenyl-, O-ethyl O-(4-nitrophenyl) ester ... (12 Dec 1998) ...

EPO
Synonym for erythropoietin ... <growth factor, hormone> Erythropoietin is a Glycoprotein (46 kD) hormone produced by specialised cells in the kidneys that regulates the production of red blood cells in the marrow. ... These cells are sensitive to low arterial oxygen concentration and will release erythropoietin when oxygen is low. Erythropoieti …

epoetin alfa
<chemical> A 165-amino acid glycoprotein (approximately 62% protein and 38% carbohydrate by weight) that regulates red blood cell production. Epoetin alfa is produced by chinese hamster ovary cells into which the human erythropoetin gene has been inserted. ... Pharmacological action: haematinics. ... (12 Dec 1998) ...

epogen
A recombinant version of erythropoeitin, a natural glycoprotein that stimulates red blood cell production. Epogen is used as a treatment for drug-related anaemia, including that caused by AZT. Epogen is made by Amgen. An identical product, known as Procrit, is made by Ortho Biotech. ... (09 Oct 1997) ...

eponychia
Infection involving the proximal nail fold. ... (05 Mar 2000) ...

eponychium
1. The thin, condensed, eleidin-rich layer of epidermis which procedes and initially covers the nail plate in the embryo. It normally degenerates by the eighth month except at the nail base where it remains as the cuticle of the nail. ... 2. The corneal layer of epidermis overlapping and in direct contact with the nail root proximally or the sides o …

eponym
Something named after someone. For example, a condition called Shiel's syndrome might be named after someone named Shiel who discovered it or described and clearly delineated it. ... (12 Dec 1998) ...

eponymic
1. Relating to an eponym. ... 2. An eponym. ... (05 Mar 2000) ...

epoophorectomy
<procedure> Removal of the epoophoron. ... Origin: G. Epi, upon, + oophoros, bearing eggs, + ektome, excision ... (05 Mar 2000) ...

epoprostenol
<chemical> A prostaglandin that is biosynthesised enzymatically from prostaglandin endoperoxides in human vascular tissue. It is a potent inhibitor of platelet aggregation. The sodium salt has been also used to treat primary pulmonary hypertension. ... Pharmacological action: antihypertensive agents, platelet aggregation inhibitors. ... Chemica …

epornitic
Referring to an outbreak of disease in a bird population. ... Origin: epi-+ G. Ornithos, bird + -ic ... (05 Mar 2000) ...

epoxide hydrolases
<enzyme> Enzymes that catalyze reversibly the formation of an epoxide or arene oxide from a glycol or aromatic diol, respectively. ... Chemical name: Epoxide hydrolase ... Registry number: EC 3.3.2.3 ... (12 Dec 1998) ...

epoxy
Chemical term describing an oxygen atom bound to two linked carbon atoms Generally, any cyclic ether, but commonly applied to a 3-membered ring; specifically, a three-membered ring is an oxirane, a four-membered ring is an oxetane, a five-membered ring is an oxolane, and a six membered ring is an oxane; oxiranes are commonly produced from peracids …

epoxy resin
Any thermosetting resin based on the reactivity of epoxy; used as adhesives, protective coatings, and embedding media for electron microscopy. ... (05 Mar 2000) ...

epoxy resins
Thermosetting resins based on the reactivity of the epoxide group, which is characterised by toughness, adhesibility, chemical resistance, dielectric properties, and dimensional stability. Several modified types are used as denture base material. ... (12 Dec 1998) ...

epoxypropane isomerase
<enzyme> Enzyme from xanthobacter py2 has 2 components, one with nad+dependent dihydrolipoamide dehydrogenase and lipoamide reductase activity; amino acid sequence has been determined ... Registry number: EC 5.3.99.- ... Synonym: epoxypropane isomerase-carboxylase ... (26 Jun 1999) ...

Epple
Associate of Leonard S. Fosdick. ... See: Fosdick-Hansen-Epple test. ... (05 Mar 2000) ...

EPR
<abbreviation> Electron paramagnetic resonance. ... (05 Mar 2000) ...

eprA1 protease
<enzyme> An extracellular protease from aeromonas hydrophila; genbank u93600 ... Registry number: EC 3.4.- ... Synonym: epra1 gene product ... (26 Jun 1999) ...

EPS
Synonym for electrophysiological studies ... <investigation> A special study that involves the placement of electrodes inside the heart to map the electrical characteristics of the heart. ... This study is carried out in a specially equipped lab and is similar to a cardiac catheterisation procedure. Electrodes are placed inside the heart via a …

epsilon
Fifth letter of the Greek alphabet, &vepsilon;. ... (05 Mar 2000) ...

epsilon alcoholism
Jellinek's term for 'spree-drinking,' such as might occur during periods away from home. ... (05 Mar 2000) ...

Epsom salts
Synonym for magnesium sulfate ... <chemical> Sulfuric acid magnesium salt (1:1). A small colourless crystal used as an anticonvulsant, a cathartic, and an electrolyte replenisher in the treatment of preeclampsia and eclampsia. It causes direct inhibition of action potential in the myometrial muscle cells. Excitation and contraction are uncoupl …

EPSP
<abbreviation> Excitatory postsynaptic potential. ... (05 Mar 2000) ...

Epstein-Barr virus
<virology> Species of Herpetoviridae that is responsible for infectious mononucleosis (glandular fever). Discovered in 1964, this virus has been associated with Burkitt's lymphoma in South African children and with nasopharyngeal carcinoma in Asian populations. ... (27 Sep 1997) ...

epstein-barr virus nuclear antigens
Nuclear antigens encoded by epstein-barr virus genes. at least six nuclear antigens have been identified but their mechanism of action and role in B-cell transformation is still unknown. ... (12 Dec 1998) ...

Epstein, Alois
<person> German paediatrician, 1849-1918. ... See: Epstein's disease, Epstein's pearls, Epstein's sign, Epstein's symptom. ... (05 Mar 2000) ...

Epstein, Michael Anthony
<person> English virologist, *1921. ... See: Epstein-Barr virus. ... (05 Mar 2000) ...

Epstein's disease
Synonym for diphtheroid ... 1. One of a group of local infections suggesting diphtheria, but caused by microorganisms other than Corynebacterium diphtheriae. ... Synonym: Epstein's disease, false diphtheria, pseudodiphtheria. ... 2. Any microorganism resembling Corynebacterium diphtheriae. ... Origin: diphtheria + G. Eidos, resemblance ... (05 Mar 2000) …

Epstein's pearls
Multiple small white epithelial inclusion cysts found in the midline of the palate in newborn infants. ... (05 Mar 2000) ...

Epstein's sign
<clinical sign> Lid retraction in an infant giving it a frightened expression and a 'wild glance.' ... See: setting sun sign, Collier's sign. ... (05 Mar 2000) ...

Epstein's symptom
Synonym for Epstein's sign ... <clinical sign> Lid retraction in an infant giving it a frightened expression and a 'wild glance.' ... See: setting sun sign, Collier's sign. ... (05 Mar 2000) ...

epulis
A tumour on the gingivae. ... (27 Sep 1997) ...

epulis fissuratum
Synonym for inflammatory fibrous hyperplasia ... Overgrowth of tissue in the mucobuccal or labial fold, induced by chronic trauma from ill-fitting dentures. ... Synonym: denture hyperplasia, epulis fissuratum. ... (05 Mar 2000) ...

epulis gravidarum
A gingival pyogenic granuloma that develops during pregnancy. ... (05 Mar 2000) ...

epuloid
A gingival mass that resembles an epulis. ... (05 Mar 2000) ...

Eq
<abbreviation> Equivalent. ... (05 Mar 2000) ...

equal
1. Agreeing in quantity, size, quality, degree, value, etc.; having the same magnitude, the same value, the same degree, etc.; applied to number, degree, quantity, and intensity, and to any subject which admits of them; neither inferior nor superior, greater nor less, better nor worse; corresponding; alike; as, equal quantities of land, water, etc. …

equal cleavage
Cleavage producing blastomeres of like size. ... (05 Mar 2000) ...

equality
1. The condition or quality of being equal; agreement in quantity or degree as compared; likeness in bulk, value, rank, properties, etc.; as, the equality of two bodies in length or thickness; an equality of rights. ... 2. Sameness in state or continued course; evenness; uniformity; as, an equality of temper or constitution. ... 3. Evenness; uniformi …

equalize
1. To make equal; to cause to correspond, or be like, in amount or degree as compared; as, to equalize accounts, burdens, or taxes. 'One poor moment can suffice To equalize the lofty and the low.' (Wordsworth) 'No system of instruction will completely equalize natural powers.' (Whately) ... 2. To pronounce equal; to compare as equal. 'Which we equal …

equation
1. A making equal; equal division; equality; equilibrium. 'Again the golden day resumed its right, And ruled in just equation with the night.' (Rowe) ... 2. <mathematics> An expression of the condition of equality between two algebraic quantities or sets of quantities, the sign = being placed between them; as, a binomial equation; a quadratic …

equations of motion
<radiobiology> Set of equations describing the time evolution of the variables which describe the state of a physical system. ... (09 Oct 1997) ...

equator
1. <geography> The imaginary great circle on the earth's surface, everywhere equally distant from the two poles, and dividing the earth's surface into two hemispheres. ... 2. <astronomy> The great circle of the celestial sphere, coincident with the plane of the earth's equator; so called because when the sun is in it, the days and nights …

equator bulbi oculi
Synonym for equator of eyeball ... An imaginary line encircling the globe of the eye equidistant from the anterior and posterior poles. ... Synonym: equator bulbi oculi. ... (05 Mar 2000) ...

equator lentis
Synonym for equator of lens ... The periphery of the lens lying between the two layers of the ciliary zonule. ... Synonym: equator lentis. ... (05 Mar 2000) ...

equator of eyeball
An imaginary line encircling the globe of the eye equidistant from the anterior and posterior poles. ... Synonym: equator bulbi oculi. ... (05 Mar 2000) ...

equator of lens
The periphery of the lens lying between the two layers of the ciliary zonule. ... Synonym: equator lentis. ... (05 Mar 2000) ...

equatorial
<astronomy> An instrument consisting of a telescope so mounted as to have two axes of motion at right angles to each other, one of them parallel to the axis of the earth, and each carrying a graduated circle, the one for measuring declination, and the other right ascension, or the hour angle, so that the telescope may be directed, even in the …

equatorial cleavage
Cleavage in which the plane of cytoplasmic division is at right angles to the axis of the ovum. ... (05 Mar 2000) ...

equatorial division
Nuclear division in which each chromosome divides equally. ... (05 Mar 2000) ...

equatorial guinea
A republic in central africa, north of gabon and bounded on the west by the atlantic ocean. Its capital is malabo. Equatorial guinea was discovered by the portuguese in 1491 and ceded to spain in 1778. The country gained independence in 1968. Equatorial refers to its location near the equator in the broad region long known as guinea . ... (12 Dec 19 …

equatorial plane
In metaphase of mitosis, the plane that touches all of the centromeres and their spindle attachments. ... (05 Mar 2000) ...

equatorial plate
<cell biology> Region of the mitotic spindle where chromosomes are aligned at metaphase: as its name suggests, it lies midway between the poles of the spindle. ... (06 Mar 1998) ...

equatorial staphyloma
A staphyloma occurring in the area of exit of the vortex veins. ... Synonym: scleral staphyloma. ... (05 Mar 2000) ...

equestrian
1. Of or pertaining to horses or horsemen, or to horsemanship; as, equestrian feats, or games. ... 2. Being or riding on horseback; mounted; as, an equestrian statue. 'An equestrian lady appeared upon the plains.' (Spectator) ... 3. Belonging to, or composed of, the ancient Roman equities or knights; as, the equestrian order. ... Origin: L. Equester, …

equianalgesic
<pharmacology> Having equal pain-killing effect, morphine sulphate, 10 mg intramuscularly, is generally used for opioid analgesic comparisons. ... (16 Dec 1997) ...

equianalgesic dose
The qualitative ratio between actual milligram potency of comparable analgesics required to achieve the equivalent therapeutic effect. ... (05 Mar 2000) ...

equiaxial
Having axes of equal length. ... (05 Mar 2000) ...

equicaloric
Equal in heat value. ... See: isodynamic. ... Origin: L. Aequus, equal, + calor, heat ... (05 Mar 2000) ...

equidae
A family of hoofed mammals consisting of horses, asses, donkeys, and zebras. Members of this family are strict herbivores and can be classified as either browsers or grazers depending on how they feed. ... (12 Dec 1998) ...

equilateral
<botany> Of stamens, with anthers regularly spaced around the style. ... (09 Oct 1997) ...

equilenin
<chemical> 3-hydroxyestra-1,3,5(10),6,8-pentaen-17-one. A naturally occurring steroid with oestrogenic activity obtained from the urine of pregnant mares. ... Chemical name: Estra-1,3,5,7,9-pentaen-17-one, 3-hydroxy- ... (12 Dec 1998) ...

equilibrium
Balance A condition in which no further net change is occuring in a system, and free energy is minimimal. ... (09 Oct 1997) ...

equilibrium centrifugation
A type of density gradient centrifugation used to separate proteins or nucleic acids from a mixture. ... (09 Oct 1997) ...

equilibrium constant
<chemistry> The ratio of the reverse and forward rate constants for a reaction of the type: ... A + B = AB ... at equilibrium the equilibrium constant (K) equals the product of the concentrations of reactants divided by the concentration of product and has dimensions of concentration. ... Kd = (concentration A.concentration B) / (concentration A …

equilibrium dialysis
In immunology, a method for determination of association constants for hapten-antibody reactions in a system in which the hapten (dialyzable) and antibody (nondialyzable) solutions are separated by semipermeable membranes. Since at equilibrium the quantity of free hapten will be the same in the two compartments, quantitative determinations can be m …

equilibrium potential
<physiology> The membrane potential at which a particular type of ion or other particle does not diffuse through the membrane in either direction. ... (09 Oct 1997) ...

equilin
<chemical> 3-hydroxyestra-1,3,5(10)7-tetraen-17-one. A naturally occurring steroid with oestrogenic activity obtained from the urine of pregnant mares. ... Chemical name: Estra-1,3,5(10),7-tetraen-17-one, 3-hydroxy- ... (12 Dec 1998) ...

equimolar
Containing an equal number of moles or having the same molarity, as in two or more substances. ... (05 Mar 2000) ...

equimolecular
Containing an equal number of molecules, as in two or more solutions. ... (05 Mar 2000) ...

equimomental
<mechanics> Having equal moments of inertia. ... Two bodies or systems of bodies are said to be equimomental when their moments of inertia about all straight lines are equal each to each. Equimomental cone of a given rigid body, a conical surface that has any given vertex, and is described by a straight line which moves in such manner that the …

equine
<zoology> Relating to, affecting, resembling or derived from a horse. ... (09 Oct 1997) ...

equine abortion virus
Synonym for equine rhinopneumonitis virus ... <virology> A herpesvirus reported in the U.S. Europe, and South Africa, causing equine rhinopneumonitis and equine virus abortion. ... Synonym: equine abortion virus. ... (05 Mar 2000) ...

equine arteritis virus
<virology> A virus of the genus Pestivirus, a member of the family Togaviridae, that causes equine viral arteritis. ... It is probably the most common cause of equine influenza and an important equine respiratory disease frequently causing abortion, pneumonia, or other infections. ... Synonym: infectious arteritis virus of horses. ... (05 Mar 20 …

equine babesiosis
<veterinary> A disease of horses caused by species of Babesia and characterised by high fever, icterus, and enlargement of the spleen and lymph nodes. ... Synonym: biliary fever of horses, equine biliary fever. ... (05 Mar 2000) ...

equine biliary fever
Synonym for equine babesiosis ... <veterinary> A disease of horses caused by species of Babesia and characterised by high fever, icterus, and enlargement of the spleen and lymph nodes. ... Synonym: biliary fever of horses, equine biliary fever. ... (05 Mar 2000) ...

equine coital exanthema
<veterinary> A disease of horses caused by equine herpesvirus 3 and characterised by pustular and ulcerative lesions on the vaginal and vestibular mucosa and on the skin of the penis, prepuce, and the perineal region. ... (05 Mar 2000) ...

equine coital exanthema virus
<veterinary, virology> A herpesvirus causing coital exanthema in male and female horses. ... (05 Mar 2000) ...

equine encephalitis
Synonym for equine encephalomyelitis ... <veterinary> An acute, often fatal, virus disease of horses and mules transmitted by mosquitoes and characterised by central nervous system disturbances. ... It is typically caused by one of two arthropod-borne viruses, and their resulting diseases are designated western equine or eastern equine encephal …

equine encephalomyelitis
<veterinary> An acute, often fatal, virus disease of horses and mules transmitted by mosquitoes and characterised by central nervous system disturbances. ... It is typically caused by one of two arthropod-borne viruses, and their resulting diseases are designated western equine or eastern equine encephalomyelitis; these viruses belong to the f …

equine encephalosis
<veterinary> A disease of horses, caused by the equine encephalosis virus and characterised by peracute death preceded by alternating periods of hyperexcitement and depression; only reported from South Africa. ... (05 Mar 2000) ...

equine encephalosis virus
<veterinary, virology> An orbivirus causing equine encephalosis in horses. ... (05 Mar 2000) ...

equine gait
Synonym for high steppage gait ... A gait in which the foot is raised high to avoid catching a drooping foot and brought down suddenly in a flapping manner; often seen in peroneal nerve palsy and tabes. ... Synonym: equine gait. ... (05 Mar 2000) ...

equine gonadotropin
<veterinary> Formed by the equine placenta. Its activity in animals is similar to that of the follicle-stimulating hormone; relatively ineffective in human beings. ... Synonym: pregnant mare's serum gonadotropin. ... (05 Mar 2000) ...

equine gonadotropin unit
<veterinary> The specific gonadotropic activity of 0.25 mg of standard preparation of the gonadotropic principle of pregnant mares' serum. ... (05 Mar 2000) ...

equine herpesvirus 3
<virology> A virus causing equine coital exanthema in horses. ... (05 Mar 2000) ...

equine herpesvirus 4
<virology> A virus causing equine rhinopneumonitis in horses. ... (05 Mar 2000) ...

equine infectious anaemia
<veterinary> virology> Viral disease of horses caused by the equine infectious anaemia virus (eiav; infectious anaemia virus, equine). It is characterised by intermittent fever, weakness, and anaemia. Chronic infection consists of acute episodes with remissions. ... (12 Dec 1998) ...

equine infectious anaemia virus
<virology> A retrovirus, of the Lentivirinae subfamily, and the cause of equine infectious anaemia. ... Synonym: swamp fever virus. ... (05 Mar 2000) ...

equine influenza
<veterinary, virology> A highly contagious upper respiratory infection of horses and other equids caused by equine strains of influenza virus type A. ... It is characterised by fever and respiratory signs similar to but more severe than those of equine rhinopneumonitis; oedema of the lower trunk and limbs (epizootic cellulitis) may occur; the …

equine leukoencephalomalacia
<veterinary> A mycotoxic disease of horses, mules, and donkeys associated with eating moldy corn containing the fungus Fusarium moniliforme; the causative toxin is fumonisin B1, which produces apathy, pharyngeal paralysis, blindness, staggering, and recumbency. ... (05 Mar 2000) ...