(chemistry) An univalent anion (OH⁻) based on the hydroxyl functional group. / Any substance containing such an anion.

plural of hydroxide

(inorganic chemistry) The hydrated form of alumina, having the formula Al(OH)₃; it reacts with bases to form aluminates.

(inorganic chemistry) The ionic base, NH₄⁺OH⁻, obtained by dissolving ammonia in water.

(inorganic chemistry) An alkali, LiOH, used in gas-purification systems in spacecraft, submarines etc, and in the preparation of lithium soap.

(inorganic chemistry) A strong, caustic alkali (NaOH) used in the manufacture of soap, detergents, paper, textiles and having many other industrial applications.

(inorganic chemistry) Alternative spelling of aluminium hydroxide

(inorganic chemistry) A soft, white powder, Ca(OH)₂, obtained by the action of water on calcium oxide; slaked lime.

(inorganic chemistry) The systematic alkali name for water.

(chemistry) The strong base Ra(OH)₂ obtained when radium reacts with water; it has no commercial use