definition of
cartridge

[1] #1 cartridge n. ammunition consisting of a cylindrical casing containing an explosive charge and a bullet; fired from a rifle or handgun. wn

[2] #2 cartridge n. [magazine] a light-tight supply chamber holding the film and supplying it for exposure as required. wn

[3] #3 cartridge n. a module designed to be inserted into a larger piece of equipment; "he loaded a cartridge of fresh tape into the tape deck". wn

[4] #4 cartridge n. [pickup] an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable. wn