| Univalent (a.) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals. Thesaurus Entries monadal, monadic, one-sided, uniangulate, unibivalent, unibranchiate, unicameral, unicellular, unicuspid, unidentate, unidigitate, unidimensional, unidirectional, uniflorous, unifoliate, unifoliolate, unigenital, uniglobular, unilateral, unilinear, uniliteral, unilobed, unilobular, unimodular, unimolecular, uniocular, unipart, unipartite, unipolar, univalent, univocal |