| alcoometry | See Alcoholometry. The chemists say alcoometrie, doubtless by the suppression of a syllable in order to avoid a disagreeable sequence of sounds. (Cf. Idolatry) Source: Websters Dictionary (01 Mar 1998) |
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| alcuronium | <chemical> 4,4'-didemethyl-4,4'-di-2-propenyltoxiferine I. A non-depolarising skeletal muscle relaxant similar to tubocurarine. It is used as an anaesthesia adjuvant. Pharmacological action: anaesthesia adjuvants, neuromuscular nondepolarising agents, nicotinic antagonists. Chemical name: Toxiferine I, 4,4'-didemethyl-4,4'-di-2-propenyl- (12 Dec 1998) |
| alcuronium chloride | N,N'-Diallylnortoxiferinium dichloride;a skeletal muscle relaxant active as a nondepolarising neuromuscular blocking agent. (05 Mar 2000) |
| alcyonacea | <zoology> A group of soft-bodied Alcyonaria, of which Alcyonium is the type. Source: Websters Dictionary (01 Mar 1998) |
| alcyonaria | <zoology> One of the orders of Anthozoa. It includes the Alcyonacea, Pennatulacea, and Gorgonacea. Source: Websters Dictionary (01 Mar 1998) |
| alcyones | <ornithology> The kingfishers. Origin: L, pl. Of Alcyon. Source: Websters Dictionary (01 Mar 1998) |
| alcyonic | <zoology> Of or pertaining to the Alcyonaria. Source: Websters Dictionary (01 Mar 1998) |
| alcyonium | <zoology> A genus of fleshy Alcyonaria, its polyps somewhat resembling flowers with eight fringed rays. The term was also formerly used for certain species of sponges. Origin: Gr. A zoophyte, so called from being like the halcyon's nest. Source: Websters Dictionary (01 Mar 1998) |
| alcyonoid | <zoology> Like or pertaining to the Alcyonaria. A zoophyte of the order Alcyonaria. Origin: Gr. Source: Websters Dictionary (01 Mar 1998) |
| ALD | <radiology> X-linked recessive, demyelination of cerebral white matter, adrenal insufficiency (unresponsive to ACTH), CT: white-matter disease: occipital regions to frontal, progression to generalised atrophy, NM: increased uptake in involved regions, ** dysmyelinating disease, white-matter disease (12 Dec 1998) |
| aldactazide | <drug> A drug combination of spironolactone and hydrochlorothiazide, for the treatment of high blood pressure. (09 Oct 1997) |
| aldadiene | A metabolite of spironolactone that contains double bonds between C-4 and C-5 and between C-6 and C-7; formed upon removal of the 7alpha-acetylthiol side chain from spironolactone and as potent a diuretic as the parent compound. (05 Mar 2000) |
| aldaric acid | One of a group of sugar acids characterised by the formula HOOC-(CHOH)n-COOH; e.g., saccharic acid. (05 Mar 2000) |
| aldebaran | <astronomy> A red star of the first magnitude, situated in the eye of Taurus; the Bull's Eye. It is the bright star in the group called the Hyades. "Now when Aldebaran was mounted high Above the shiny Cassiopeia's chair." (Spenser) Origin: Ar. Al-debaran, fr. Dabar to follow; so called because this star follows upon the Pleiades. Source: Websters Dictionary (01 Mar 1998) |
| aldehol | An oxidation product of kerosene; used for denaturing ethyl alcohol. (05 Mar 2000) |