| methylene azure | A mixture of azure A and B. Synonym: methylene azure. (05 Mar 2000) |
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| azure | Sky-blue; resembling the clear blue colour of the unclouded sky; cerulean; also, cloudless. <chemical> Azure stone, the lapis lazuli; also, the lazulite. Origin: F. & OSp. Azur, Sp. Azul, through Ar. From Per. Lajaward, or lajuward, lapis lazuli, a blue colour, lajawardi, lajuwardi, azure, cerulean, the initial l having been dropped, perhaps by the influence of the Ar. Azr-aq azure, blue. Cf. G. Lasur, lasurstein, azure colour, azure stone, and NL. Lapis lazuli. Source: Websters Dictionary (01 Mar 1998) |
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| azure A | C14H14N3SCl; asymmetrical dimethylthionine chloride;a blue dye used as a component of MacNeal's tetrachrome blood stain and of Romanowsky-type blood stains; also used as a stain for mucins, nucleic acids, and mast cell granules; gives a metachromatic violet to red colour to highly acidic substances in tissues. (05 Mar 2000) |
| azure B | C15H16N3SCl; trimethylthionine chloride;a blue dye used like azure A; also as azure B bromide to give metachromatic staining of RNA and DNA. (05 Mar 2000) |
| azure C | C13H12N3SCl; monomethylthione chloride;a blue-violet thiazin dye used in the metachromatic staining of mucins and cartilage. (05 Mar 2000) |
| azure I | A mixture of azure A and B. Synonym: methylene azure. (05 Mar 2000) |
| azure II | A mixture of azure I and methylene blue; the eosinate, azure II-eosin, is the principal ingredient of Giemsa stain. (05 Mar 2000) |
| azure lunula of nails | Bluish nonblanching discoloration of the lunulae of all the fingernails in hepatolenticular degeneration. (05 Mar 2000) |
| azure stains | Green crystals or powder used as biological stains. (12 Dec 1998) |
| Lillie's azure-eosin stain | <technique> A stain in which an azure eosinate solution is used to stain bacteria and rickettsiae in tissues. (05 Mar 2000) |
| basic fuchsin-methylene blue stain | <technique> A stain for intact epoxy sections; semi-thick sections of plastic-embedded tissues have nuclei stained purple; collagen, elastic lamina, and connective tissue are stained blue; mitochondria, myelin, and lipid droplets are stained red; cytoplasm, smooth muscle cells, axoplasm, and chrondroblasts are stained pink. (05 Mar 2000) |
| carbon monoxide-methylene blue oxidoreductase | <enzyme> Molybdenum-containing iron-sulfur flavoprotein from pseudomonas carboxydovorans; forms carbon dioxide Registry number: EC 1.2.3.- Synonym: cm-mb oxidoreductase, carbon monoxide oxidase (26 Jun 1999) |
| methylene | <chemistry> A hydrocarbon radical, CH2, not known in the free state, but regarded as an essential residue and component of certain derivatives of methane; as, methylene bromide, CH2Br2; formerly called also methene. <chemistry> Methylene blue, an artificial dyestuff consisting of a complex sulphur derivative of diphenyl amine; called also pure blue. Origin: F. Methylene, from Gr. Wine + wood; a word coined to correspond to the name wood spirit. Source: Websters Dictionary (01 Mar 1998) |
| methylene blue | <chemical> Methylthionine chloride; dark green crystals or crystalline powder having a bronze-like luster, readily reduced to colourless leukomethylene blue, which in turn is readily oxidised to methylene blue. Used as a bacteriologic stain and as an indicator, and administered orally or intravenously in the treatment of congenital methemoglobinaemia and cyanide poisoning. Pharmacological action: anti-infective agents, urinary, antidotes, dyes. Chemical name: Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride (12 Dec 1998) |
| methylene chloride | <chemical> Dichloromethane. A chlorinated hydrocarbon that has been used as an inhalation anaesthetic and acts as a narcotic in high concentrations. Its primary use is as a solvent in manufacturing and food technology. Chemical name: Methane, dichloro- (12 Dec 1998) |
| methylene tetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase | <chemical> Bifunctional enzyme which contains mg-nad dependent covalently linked methylenetetrahydrofolate dehydrogenase (EC 1.5.1.15) and methenyltetrahydrofolate cyclohydrolase (EC 3.5.4.9); usually found in prokaryotes Synonym: methf dehydrogenase-cyclohydrolase (26 Jun 1999) |