| acipenser | <zoology> A genus of ganoid fishes, including the sturgeons, having the body armed with bony scales, and the mouth on the under side of the head. See Sturgeon. Origin: L, the name of a fish. Source: Websters Dictionary (01 Mar 1998) |
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| acitretin | <chemical> An oral retinoid effective in the treatment of psoriasis. It is the major metabolite of etretinate with the advantage of a much shorter half-life when compared with etretinate. Pharmacological action: keratolytic agents. Chemical name: 2,4,6,8-Nonatetraenoic acid, 9-(4-methoxy-2,3,6-trimethylphenyl)-3,7-dimethyl-, (all-E)- (12 Dec 1998) |
| aciurgy | Operative surgery. Origin: Gr. A point + work. Source: Websters Dictionary (01 Mar 1998) |