| sulphion | <chemistry> A hypothetical radical, SO4, regarded as forming the acid or negative constituent of sulphuric acid and the sulphates in electrolytic decomposition; so called in accordance with the binary theory of salts. Alternative forms: sulphione. Source: Websters Dictionary (01 Mar 1998) |
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| sulphionide | <chemistry> A binary compound of sulphion, or one so regarded; thus, sulphuric acid, HSO, is a sulphionide. Source: Websters Dictionary (01 Mar 1998) |