Găr'ri-son1, n.
(găr/ri-sn), n. [O. Eng. garneson, garnisoun, Fr. garnison, garrison, O. Fr. garnison, garison, provision, munitions, from garnir, to garnish; Pr. garniso, garizo, equipment, provision, garrison, Sp. guarnicion, It. guarnizione, guarnigione. See GARNISH.] (Mil.) (a.) A body of troops stationed in a fort or fortified town, to defend it against an enemy, or to keep the inhabitants in subjection. Burke. (b.) A strong place, in which troops are quartered for its security. Campbell.
In garrison, in the condition of a garrison; doing duty in a fort or as one of a garrison.