Cartridge (surname) definition

(1) Ammunition consisting of a cylindrical casing containing an explosive charge and a bullet; fired from a rifle or handgun

(2) An electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable

(3) A module designed to be inserted into a larger piece of equipment

"He loaded a cartridge of fresh tape into the tape deck"

(4) A light-tight supply chamber holding the film and supplying it for exposure as required