A person (by constitutional convention a member of either House of Parliament) appointed to government office by the Crown on the advice of the Prime Minister. He may be a senior minister in charge of a department (normally styled Secretary of State but sometimes Minister), a senior minister without specific departmental responsibilities (e.g. the Lord Privy Seal or a Minister without Portfolio), or a junior minister assisting in departmental business (a Minister of State or a Parliamentary Secretary or Under-Secretary). In the Treasury the ministerial ranks are Chancellor of the Exchequer, Chief Secretary, Financial Secretary, and Ministers of State.
Subjects: Law — Social Sciences.