01 a. Of, pertaining to, or derived from, chromium, when this element has a valence lower than that in chromic compounds.
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1.
Of, pertaining to, or derived from, chromium, when this element has a valence lower than that in chromic compounds.
Phrases & compounds
Chromous acid —
a bluish gray powder, CrO.OH, of weak acid properties and regard as an acid.