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hydroxyl n. 氢氧根 氢氧根 hydroxyl n 1: the monovalent group -OH in such compounds as bases and some acids and alcohols [synonym: {hydroxyl}, {hydroxyl group}, {hydroxyl radical}] Hydroxyl \Hy*drox"yl\, n. [Hydro-, 2 oxygen -yl.] (Chem.)
A compound radical, or unsaturated group, {HO}, consisting of one atom of hydrogen and one of oxygen. It is a characteristic part of the hydrates, the alcohols, the oxygen acids, etc. [1913 Webster]
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