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.
Being someoneâs ward means being under someoneâs care. The ward of the state is essentially under the stateâs care through one or more of its agencies. Such wards might receive financial support from the state, should it be necessary. Itâs possible for someone to become a ward because of mental incapacity, even if he or she has money.