Mace
WordNet
noun
(1) A ceremonial staff carried as a symbol of office or authority
(2) Spice made from the dried fleshy covering of the nutmeg seed
(3) An official who carries a mace of office
(4) (trademark) a liquid that temporarily disables a person; prepared as an aerosol and sprayed in the face, it irritates the eyes and causes dizziness and immobilization