rimfire I. \ˈ ̷ ̷ˌ ̷ ̷\adjective Etymology:rim (I) + fire (v.) 1.of a cartridge: having the percussion compound in a rim surrounding the base — distinguished from center-fire 2.: designed for or adapted to the use of rimfire cartridges < rimfire rifle > II. noun Etymology:rim (I) + fire (n.) : the burning of the leaf margins (as in tobacco) caused by potash hunger