| meralgia | Pain in the thigh; specifically, meralgia paresthetica. Origin: G. Meros, thigh, + algos, pain (21 Sep 2000) |
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| Meralgia paraesthetica | <symptom> A tingling, formication, itching, and other forms of paresthesia in the outer side of the lower part of the thigh in the area of distribution of the lateral femoral cutaneous nerve; there may be pain, but the skin is usually hypesthetic to the touch. Synonym: Bernhardt's disease, Bernhardt-Roth syndrome, Roth's disease, Roth-Bernhardt disease. (21 Sep 2000) |
| meralluride | N-[[2-Methoxy-3-[(1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxopurin-7-yl) mercuri]propyl]carbamoyl]succinamic acid;a mercurial diuretic. (05 Mar 2000) |
| merbromin | <chemical> A popular topical antiseptic with weak antibacterial action. It is incompatible with local anaesthetics. Pharmacological action: anti-infective agents, local. Chemical name: Mercury, (2',7'-dibromo-3',6'-dihydroxy-3-oxospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-4'-yl)hydroxy-, disodium salt (12 Dec 1998) |
| mercaptal | <chemistry> Any one of a series of compounds of mercaptans with aldehydes. Origin: Mercaptan + aldehyde. Source: Websters Dictionary (01 Mar 1998) |
| mercaptan | <chemistry> Any one of series of compounds, hydrosulphides of alcohol radicals, in composition resembling the alcohols, but containing sulphur in place of oxygen, and hence called also the sulphur alcohols. In general, they are colourless liquids having a strong, repulsive, garlic odour. The name is specifically applied to ethyl mercaptan, C2H5SH. So called from its avidity for mercury, and other metals. Origin: F, fr. NL. Mercurius mercury + L. Captans, p. Pr. Of captare to seize, v. Intens. Fr. Capere. Source: Websters Dictionary (01 Mar 1998) |
| mercaptide | <chemistry> A compound of mercaptan formed by replacing its sulphur hydrogen by a metal; as, potassium mercaptide, C2H5SK. Source: Websters Dictionary (01 Mar 1998) |
| mercapto- | <prefix> Prefix indicating the presence of a thiol group, -SH. (05 Mar 2000) |
| mercaptoacetic acid | HSCH2COOH;used as a reagent for the detection of metals such as iron, molybdenum, silver, and tin; the ammonium and sodium salts are used in home permanents, the calcium salt as a depilatory. Synonym: mercaptoacetic acid. (05 Mar 2000) |
| mercaptoethanol | <chemical> A water soluble thiol, not of biological origin. Used in biochemistry to cleave disulphide bonds in proteins or to protect sulphydryl groups from oxidation. (18 Nov 1997) |
| mercaptol | A substance derived from a ketone by the replacement of the bivalent oxygen by two thioalkyl (-SR) groups. (05 Mar 2000) |
| mercaptolactate-cysteine disulfiduria | Elevated levels of the mixed disulfide of 3-mercaptolactate and cysteine in the urine. (05 Mar 2000) |
| mercaptomerin sodium | N-(gamma-Carboxymethylmercaptomercuri-beta-methoxy)propylcamphoramic acid disodium salt;a mercurial diuretic. (05 Mar 2000) |
| mercaptopropionylglycine | <chemical> Sulfhydryl acylated derivative of glycine used in treatment of liver diseases, as a detoxicant and in therapy of myopia. Chemical name: Glycine, N-(2-mercapto-1-oxopropyl)- (12 Dec 1998) |
| mercapturic acid | A condensation product of l-cysteine with aromatic compounds, such as bromobenzene; formed biologically via glutathione in the liver and excreted in the urine; an S-substituted N-acetylated l-cysteine. Compare: mercapturic acid pathway. (05 Mar 2000) |
| beche de mer | <zoology> The trepang. Origin: F, lit, a sea spade. Source: Websters Dictionary (01 Mar 1998) |
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| mal de mer | A form of motion sickness caused by the motion of a floating platform, such as a ship, boat, or raft. Synonym: mal de mer, naupathia, vomitus marinus. (05 Mar 2000) |
| -mer | 1. Chemical suffix attached to a prefix such as mono-, di-, poly-, tri-, etc., to indicate the smallest unit of a repeating structure; e.g., polymer. 2. Suffix denoting a member of a particular group; e.g., isomer, enantiomer. (05 Mar 2000) |