| sulphatara | <microbiology> A hot, sulphur-rich, generally acidic environment, commonly inhabited by hyperthermophilic Archaea. (19 Jan 1998) |
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| sulphatase | <enzyme> An esterase in which one of the substituents of the substrate is a sulphate group. (18 Nov 1997) |
| sulphate | <chemistry> A salt of sulphuric acid. Origin: NL. Sulphas, sulphatis, fr. L. Sulphur, sulfur, brimstone, sulphur: cf. F. Sulfate. Source: Websters Dictionary (01 Mar 1998) |
| sulphate-reducing bacterium | <microbiology> A prokaryote which is able to reduce sulphate SO4 (as a terminal electron acceptor) using electrons donated from organic acids, fatty acids, alcohols or hydrogen (electron donors). (19 Jan 1998) |
| sulphatic | <chemistry> Of, pertaining to, resembling, or containing, a sulphate or sulphates. Source: Websters Dictionary (01 Mar 1998) |
| sulphato- | <chemistry, prefix> A combining form (also used adjectively) denoting a sulphate as an ingredient in certain double salts; as, sulphato-carbonate. (29 Oct 1998) |
| sulphaurate | <chemistry> A salt of sulphauric acid. Source: Websters Dictionary (01 Mar 1998) |
| sulphauric | <chemistry> Of, pertaining to, or designating, a hypothetical sulphacid of gold (aurum), known only in its salts. Source: Websters Dictionary (01 Mar 1998) |