Hydroxide is a diatomic anion with chemical formula OH â . It consists of an oxygen and hydrogen atom held together by a 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.he hydroxide ion forms salts, some of which dissociate in aqueous solution, liberating solvated hydroxide ions. Sodium hydroxide is a multi-million-ton per annum commodity chemical.
Definition of 'ward'. ward. A ward is a room in a hospital which has beds for many people, often people who need similar treatment. A toddler was admitted to the emergency ward with a wound in his chest. A ward is a district which forms part of a political constituency or local council.
The Ward surname may also be of Irish origin from the Irish last name McWard and variations such as MacAward, MacEvard, MacEward, and Macanward. It derives from the old Gaelic name Mac an Bhaird, from the prefix Mac, meaning son of and bhaird, a Gaelic word meaning bard or poet..