| sulphonal | <medicine> A substance employed as a hypnotic, produced by the union of mercaptan and acetone. Source: Websters Dictionary (01 Mar 1998) |
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| sulphonamide | <pharmacology> Group of drugs derived from sulphanilamide (a red dye): act by blocking folic acid synthesis from p aminobenzoic acid (PABA), because they are competitive analogues. (18 Nov 1997) |
| sulphonate | <chemistry> A salt of sulphonic acid. Source: Websters Dictionary (01 Mar 1998) |
| sulphone | <chemistry> Any one of a series of compounds analogous to the ketones, and consisting of the sulphuryl group united with two hydrocarbon radicals; as, dimethyl sulphone, (CH).SO. Source: Websters Dictionary (01 Mar 1998) |
| sulphonic | <chemistry> Pertaining to, or derived from, a sulphone; used specifically to designate any one of a series of acids (regarded as acid ethereal salts of sulphurous acid) obtained by the oxidation of the mercaptans, or by treating sulphuric acid with certain aromatic bases (as benzene); as, phenyl sulphonic acid, C6H5.SO2.OH, a stable colourless crystalline substance. <chemistry> Sulphonic group, the hypothetical radical, SO2.OH, the characteristic residue of sulphonic acids. Source: Websters Dictionary (01 Mar 1998) |
| sulphonium | <chemistry> A hypothetical radical, SH3, regarded as the type and nucleus of the sulphines. Origin: Sulphur + ammonium. Source: Websters Dictionary (01 Mar 1998) |
| sulphonylurea | <pharmacology> Medicarion used to lower the level of glucose (sugar) in the blood. (19 Jan 1998) |
| sulphophosphate | <chemistry> A salt of sulphophosphoric acid. Source: Websters Dictionary (01 Mar 1998) |
| sulphophosphite | <chemistry> A salt of sulphophosphorous acid. Source: Websters Dictionary (01 Mar 1998) |
| sulphophosphoric | Of, pertaining to, or designating, a hypothetical sulphacid of phosphorus, analogous to phosphoric acid, and known in its salts. Source: Websters Dictionary (01 Mar 1998) |
| sulphophosphorous | <chemistry> Of, pertaining to, or designating, a hypothetical acid of phosphorus, analogous to phosphorous acid, and known in its salts. Source: Websters Dictionary (01 Mar 1998) |
| sulphosalt | <chemistry> A salt of a sulphacid. Source: Websters Dictionary (01 Mar 1998) |
| sulphostannate | <chemistry> A salt of sulphostannic acid. Source: Websters Dictionary (01 Mar 1998) |
| sulphostannic | <chemistry> Of, pertaining to, or designating, a sulphacid of tin (more exactly called metasulphostannic acid), which is obtained as a dark brown amorphous substance, HSnS, forming a well-known series of salts. Source: Websters Dictionary (01 Mar 1998) |
| sulphotungstate | <chemistry> A salt of sulphotungstic acid. Source: Websters Dictionary (01 Mar 1998) |