| methanosarcinaceae | A family of anaerobic methanosarcinales whose cells are mesophilic or thermophilic and appear as irregular spheroid bodies or sheathed rods. These methanogens are found in any anaerobic environment including aquatic sediments, anaerobic sewage digesters and gastrointestinal tracts. There are four genera: methanosarcina, methanolobus, methanothrix, and methanococcoides. (12 Dec 1998) |
|---|---|
| methanosarcinales | An order of anaerobic methanogens in the kingdom euryarchaeota. (12 Dec 1998) |
| methanospirillum | A genus of anaerobic rod-shaped methanomicrobiaceae whose organisms are progressively motile by means of polar, tufted flagella. These methanogens have been isolated from sewage-sludge and pear waste digesters as well as marine and non-marine habitats. (12 Dec 1998) |
| methanotroph | An organism capable of oxidizing methane. (09 Oct 1997) |
| methantheline bromide | C21H26BrNO3; beta-diethylaminoethyl-9-xanthenecarboxylate methobromide;an anticholinergic drug. (05 Mar 2000) |
| methapyrilene | <chemical> Histamine h1 antagonist with sedative action used as a hypnotic and in allergies. Pharmacological action: anti-allergic agents, histamine h1 antagonists, sedatives, nonbarbiturate. Chemical name: 1,2-Ethanediamine, N,N-dimethyl-N'-2-pyridinyl-N'-(2-thienylmethyl)- (12 Dec 1998) |
| methaqualone | <chemical> A quinazoline derivative with hypnotic and sedative properties. It has been withdrawn from the market in many countries because of problems with abuse. Pharmacological action: sedatives, nonbarbiturate. Chemical name: 4(3H)-Quinazolinone, 2-methyl-3-(2-methylphenyl)- (12 Dec 1998) |
| metharbital | 5,5-Diethyl-1-methylbarbituric acid;an N-methylated derivative of barbital with anticonvulsant properties similar to those of phenobarbital; converted to barbital in the body. (05 Mar 2000) |
| methargen | 2,2'-Dinaphthylmethane-3,3'-disulfonic acid disilver salt;a topical antiseptic agent. (05 Mar 2000) |
| methazolamide | <chemical> A carbonic anhydrase inhibitor that is used as a diuretic and in the treatment of glaucoma. Pharmacological action: carbonic anhydrase inhibitors, diuretics. Chemical name: Acetamide, N-(5-(aminosulfonyl)-3-methyl-1,3,4-thiadiazol-2(3H)-ylidene)- (12 Dec 1998) |
| metHb | <abbreviation> Methemoglobin. (05 Mar 2000) |
| methdilazine hydrochloride | 10-(1-Methyl-3-pyrrolidylmethyl)phenothiazine hydrochloride;a phenothiazine compound with antihistaminic activity; used in the treatment of various dermatoses to relieve pruritus. (05 Mar 2000) |
| methemalbumin | A 1:1 molar complex of haem or haematin and albumin formed after the dissociation of methemoglobin into haem or haematin and globin in plasma. This complex, which imparts a coffee-brown colour to plasma, occurs in haemolytic and haemorrhagic disorders. Its presence in plasma is used as a test to differentiate between haemorrhagic and edematous pancreatitis. (12 Dec 1998) |
| methemalbuminaemia | The presence of methemalbumin in the circulating blood, indicative of haemoglobin breakdown; found in some patients with blackwater fever or paroxysmal nocturnal haemoglobinuria; described as a means of differentiating severe (haemorrhagic) from mild (edematous) pancreatitis, and also has been described in other acute conditions such as strangulation obstruction of intestine and mesenteric artery occlusion. (05 Mar 2000) |
| methemoglobin | Haemoglobin in a form incapable of carrying oxygen. (12 Dec 1998) |