| 'Greek letter alpha' | angular acceleration; first [carbon atom next to the carbon atom bearing the active group in organic... |
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| beta [Greek letter beta] | an anomer of a carbohydrate; buffer capacity; carbon separated from a carboxyl by one other carbon i... |
| DMSA | Meso-2,3-dimercaptosuccinic acid |
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| DMSA | Meso-dimercaptosuccinic acid |
| m-THPC | Meso-tetra(hydroxyphenyl)chlorin |
| EACs | Endocrine active compounds |
| NOC | N-Nitroso compounds |
| meso compounds | Compounds containing more than one asymmetric carbon atom, with configurations about them so balanced that the molecule as a whole possesses a plane of symmetry, although the individual carbon atoms do not; such compounds are not optically active; e.g., ribitol, mucic acid, meso-inositol, meso-cystine. (05 Mar 2000) |
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| meso- | Mes- 1. Middle, mean, intermediacy. 2. A mesentery, mesentery-like structure. 3. A prefix denoting a compound, containing more than one chiral centre, having an internal plane of symmetry; such compounds do not exhibit optical activity (e.g., meso-cystine). Origin: G. Mesos (05 Mar 2000) |
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| meso compound | <chemistry> A compound that has two or more chiral centres but does not rotate plane-polarized light because it has an internal plane of symmetry. These compounds are identical to their mirror images. (09 Jan 1998) |
| meso-cystine | An isomer of cystine in which the configuration about one of the alpha-carbons is d, about the other, l, so that the molecule as a whole possesses a plane of symmetry and is optically inactive. Note that meso-cystine is not dl-cystine. Dl-cystine is a racaemic mixture of dd-cystine and ll-cystine. (05 Mar 2000) |
| meso-inositol | 1. Generic term for any isomer of meso-inositol in which the hydroxyl groups are so arranged that the molecule as a whole possesses a plane of symmetry and is optically inactive. 2. Former name for myo-inositol. (05 Mar 2000) |
| meso-ontomorph | A broad, stocky individual. Origin: meso-+ G. On, being, + morphe, form (05 Mar 2000) |
| meso-tartrate dehydrogenase | <enzyme> Forms dihydroxyfumarate; distinguished from EC 1.1.1.93 which forms oxaloglycollate Registry number: EC 1.3.1.7 (26 Jun 1999) |
| alicyclic compounds | See: cyclic compound. (05 Mar 2000) |
| alkylmercury compounds | Organic mercury compounds in which the mercury is attached to an alkyl group. (12 Dec 1998) |
| alum compounds | Aluminum metal sulfate compounds used medically as astringents and for many industrial purposes. They are used in veterinary medicine for the treatment of ulcerative stomatitis, leukorrhoea, conjunctivitis, pharyngitis, metritis, and minor wounds. (12 Dec 1998) |
| aluminum compounds | Inorganic compounds that contain aluminum as an integral part of the molecule. (12 Dec 1998) |
| aminobiphenyl compounds | <chemistry> Biphenyl compounds substituted in any position by one or more amino groups. Permitted are any substituents except fused rings. (12 Dec 1998) |
| ammonium compounds | Inorganic and organic compounds that contain the hypothetical radical nh4. (12 Dec 1998) |
| barium compounds | Inorganic compounds that contain barium as an integral part of the molecule. (12 Dec 1998) |
| benzalkonium compounds | <chemical> A mixture of alkylbenzyldimethylammonium compounds. It is a bactericidal quaternary ammonium detergent used topically in medicaments, deodorants, mouthwashes, as a surgical antiseptic, and as a as preservative and emulsifier in drugs and cosmetics. Pharmacological action: anti-infective agents, local, detergents, preservatives, pharmaceutical. (12 Dec 1998) |
| benzhydryl compounds | Compounds which contain the methyl radical substituted with two benzene rings. Permitted are any substituents, but ring fusion to any of the benzene rings is not allowed. (12 Dec 1998) |
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