| Dick method | An intracutaneous test of susceptibility to the erythrogenic toxin of Streptococcus pyogenes responsible for the rash and other manifestations of scarlet fever. Synonym: Dick method. (05 Mar 2000) |
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| Dick test | An intracutaneous test of susceptibility to the erythrogenic toxin of Streptococcus pyogenes responsible for the rash and other manifestations of scarlet fever. Synonym: Dick method. (05 Mar 2000) |
| Dick test toxin | A culture filtrate of lysogenised group A strains of beta-haemolytic streptococci, erythrogenic when inoculated into the skin of susceptible persons, and neutralised by antibodies that appear during scarlet fever convalescence; three immunological types (A, B, and C) are recognised. Synonym: Dick test toxin, erythrogenic toxin, scarlet fever erythrogenic toxin. (05 Mar 2000) |
| Dick, George Frederick | <person> U.S. Internist, 1881-1967. See: Dick method, Dick test, Dick test toxin. (05 Mar 2000) |
| Dick, Gladys | <person> U.S. Internist, 1881-1963. See: Dick method, Dick test, Dick test toxin. (05 Mar 2000) |
| dickcissel | <zoology> The American black-throated bunting (Spiza Americana). Source: Websters Dictionary (01 Mar 1998) |
| Dickens shunt | <biochemistry> A pathway of hexose oxidation in which glucose-6-phosphate undergoes two successive oxidations by NADP, the final one being an oxidative decarboxylation to form a pentose phosphate. Diverges from this when glucose-6-phosphate is oxidized to ribose 5 phosphate by the enzyme glucose-6 phosphate dehydrogenase. This step reduces NADP to NADPH, generating a source of reducing power in cells for use in reductive biosyntheses. In plants, part of the pathway functions in the formation of hexoses from carbon dioxide in photosynthesis. Also important as source of pentoses, for example for nucleic acid biosynthesis. This pathway is the main metabolic pathway in neutrophils, congenital deficiency in the pathway produces sensitivity to infection. Alternative metabolic route to Embden Meyerhof pathway for breakdown of glucose. (18 Nov 1997) |
| Dickens, Frank | <person> British biochemist, *1899. See: Dickens shunt, Warburg-Lipmann-Dickens-Horecker shunt. (05 Mar 2000) |
| dicker | 1. The number or quantity of ten, particularly ten hides or skins; a dakir; as, a dicker of gloves. "A dicker of cowhides." (Heywood) 2. A chaffering, barter, or exchange, of small wares; as, to make a dicker. "For peddling dicker, not for honest sales." (Whittier) Origin: Also daker, dakir; akin to Icel. Dekr, Dan. Deger, G. Decher; all prob. From LL. Dacra, dacrum, the number ten, akin to L. Decuria a division consisting of ten, fr. Decem ten. See Ten. Source: Websters Dictionary (01 Mar 1998) |