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- DictionaryHy·drox·ide/hīˈdräkˌsīd/
noun
- 1. a compound of a metal with the hydroxide ion OH− (as in many alkalis) or the group —OH.
noun
Hydroxide is a diatomic anion with chemical formula OH − . It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, a ligand, a nucleophile, and a catalyst. The hydroxide ion forms salts, some of which dissociate in aqueous solution, liberating solva... Wikipedia