| MI | A term used to describe irreversible injury to heart muscle. Also called a heart attack. See: infarction. Common symptoms include substernal, crushing chest pain that may radiate to the jaw or arms. Chest pains may be associated with nausea, sweating and shortness of breath. (27 Sep 1997) |
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| miamis | <ethnology> A tribe of Indians that formerly occupied the country between the Wabash and Maumee rivers. Source: Websters Dictionary (01 Mar 1998) |
| mianeh disease | A tick-borne relapsing fever, occurring in the Middle East, caused by Borrelia persica and transmitted by Ornithodoros tholozani and possibly by Ornithodoros lahorensis. Synonym: mianeh disease, mianeh fever. (05 Mar 2000) |
| mianeh fever | A tick-borne relapsing fever, occurring in the Middle East, caused by Borrelia persica and transmitted by Ornithodoros tholozani and possibly by Ornithodoros lahorensis. Synonym: mianeh disease, mianeh fever. (05 Mar 2000) |
| mianserin | <chemical> A tetracyclic compound with antidepressant effects. It may cause drowsiness and haematological problems. Its mechanism of therapeutic action is not well understood, although it apparently blocks alpha-adrenergic, histamine h1, and some types of serotonin receptors. Pharmacological action: adrenergic alpha-antagonists, antidepressive agents, second-generation, histamine h1 antagonists, serotonin antagonists. Chemical name: Dibenzo(c,f)pyrazino(1,2-a)azepine, 1,2,3,4,10,14b-hexahydro-2-methyl- (12 Dec 1998) |
| mianserin hydrochloride | 1,2,3,4,10,14b-Hexahydro-2-methyldibenzo[c,f]pyrazino[1,2a]azepine monohydrochloride;an antihistaminic with antiserotonin activity. (05 Mar 2000) |
| miargyrite | <chemical> A mineral of an iron-black colour, and very sectile, consisting principally of sulphur, antimony, and silver. Origin: Gr. Less + silver. So called because it contains less silver than some kindred ore. Source: Websters Dictionary (01 Mar 1998) |
| miascite | <chemical> A granitoid rock containing feldspar, biotite, elaeolite, and sodalite. Origin: Named from Miask, in the Ural Mountains. Source: Websters Dictionary (01 Mar 1998) |
| miasma theory | An explanation of the origin of epidemics, based on the false notion that they were caused by air of bad quality, e.g., emanating from rotting vegetation in marshes or swamps. (05 Mar 2000) |
| miasmatical | Containing, or relating to, miasma; caused by miasma; as, miasmatic diseases. Origin: Cf. F. Miasmatique. Source: Websters Dictionary (01 Mar 1998) |
| miasmology | <study> That department of medical science which treats of miasma. Origin: Miasma. Source: Websters Dictionary (01 Mar 1998) |
| Mibelli | Vittorio, Italian dermatologist, 1860-1910. See: Mibelli's angiokeratomas, Mibelli's disease. (05 Mar 2000) |
| Mibelli's angiokeratomas | Telangiectatic small papules of the extremities, common in adolescent girls. (05 Mar 2000) |
| Mibelli's disease | A rare, chronic, progressive autosomal dominant disorder seen most often in males and usually appearing in early childhood. It is characterised by the formation of slightly atrophic patches surrounded by an elevated, keratotic border. (12 Dec 1998) |
| MIBG | <radiology> I-131 meta-iodobenzylguanidine, hot guano, localises catecholamine secretion, for detection of pheochromocytoma (12 Dec 1998) |