Sulphacid

• (n.) An acid in which, to a greater or less extent, sulphur plays a part analogous to that of oxygen in an oxyacid; thus, thiosulphuric and sulpharsenic acids are sulphacids; -- called also sulphoacid. See the Note under Acid, n., 2.
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Sulphacid

Sulph·ac'id noun [ Sulpho- + acid .] (Chemistry) An acid in which, to a greater or less extent, sulphur plays a part analogous to that of oxygen in an oxyacid; thus, thiosulphuric and sulpharsenic acids are sulphacids ; -- called also sulphoacid . See the Note under ...
Found on http://www.encyclo.co.uk/webster/S/235
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