| guaiac | <chemical> Resin from wood of guajacum officinale l. Or g. Sanctum l., family zygophyllaceae. Used as clinical reagent for occult blood. Pharmacological action: indicators and reagents. Chemical name: Guaiacum (resin) (12 Dec 1998) |
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| guaiac gum | <chemical> Resin from wood of guajacum officinale l. Or g. Sanctum l., family zygophyllaceae. Used as clinical reagent for occult blood. Pharmacological action: indicators and reagents. Chemical name: Guaiacum (resin) (12 Dec 1998) |
| guaiac test | Glacial acetic acid, gum guaiac solution, and hydrogen peroxide are added to an aqueous suspension of the suspected stain; if occult blood or blood pigment is present, a blue colour develops. Synonym: guaiac test, Schonbein's test, van Deen's test. (05 Mar 2000) |
| guaiacin | Guaiac saponin, a constituent of guiac used as a reagent for oxidases, with which it gives a blue colour. (05 Mar 2000) |
| guaiacol | <chemical> An agent thought to have disinfectant properties and used as an expectorant. Pharmacological action: disinfectants, expectorants. Chemical name: Phenol, 2-methoxy- (12 Dec 1998) |
| guaiacol glyceryl ether | <chemical> 3-(2-methoxyphenoxy)-1,2-propanediol. An expectorant that also has some muscle relaxing action. It is used in many cough preparations. Pharmacological action: expectorants. Chemical name: 1,2-Propanediol, 3-(2-methoxyphenoxy)- (12 Dec 1998) |
| guaiacol phosphate | Phosphoric guaiacyl ether, a white crystalline powder, insoluble in water; used as an intestinal antiseptic and in fever. (05 Mar 2000) |
| guaiacum | 1. <botany> A genus of small, crooked trees, growing in tropical America. 2. The heart wood or the resin of the Guaiacum offinale or lignum-vitae, a large tree of the West Indies and Central America. It is much used in medicine. Alternative forms: guaiac. Origin: NL, fr. Sp. Guayaco, from native name in Hayti. Source: Websters Dictionary (01 Mar 1998) |
| guaiacylglycerol beta-O-4-guaiacyl ether dehydrogenase | <enzyme> Nad+ required; forms the corresponding ketone at the alpha carbon of the glycerol side chain Registry number: EC 1.1.1.- Synonym: gge dehydrogenase (26 Jun 1999) |
| stool guaiac test | <investigation> A chemical test measures the presence of fresh or decomposed blood. Blood may arise from bleeding anywhere along the gastrointestinal tract, from the mouth to the anus. An easy to perform colourmetric test. (27 Sep 1997) |
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