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.
In Australia, New Zealand and the United States, the child is termed a ward of the court. In Ireland and the United Kingdom the is not used; the ward is thus termed a ward of court. In Canada the legal term is Crown ward. Children who are in the custody of government departments, also known as foster care, become wards of the respective government entity, and in the US wards of the states in which they reside.