orthoacid

An acid in which the number of hydroxyl groups equals the valence of the acid-forming element; e.g., C(OH)4, orthocarbonic acid. When there is no such acid, the one that most nearly approaches this condition is sometimes called an orthoacid; e.g., OP(OH)3, orthophosphoric acid. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

orthoacid

Type: Term Pronunciation: ōr′thō-as′id Definitions: 1. An acid in which the number of hydroxyl groups equals the valence of the acid-forming element, C(OH)4, orthocarbonic acid. When no such acid is present, the one that most nearly approaches this condition is sometimes called an orthoacid, OP(OH)3
Found on http://www.medilexicon.com/medicaldictionary.php?t=63426
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