- a cylindrical case of pasteboard, metal, or the like, for holding a complete charge of powder, and often also the bullet or the shot for a rifle, machine gun, or other small arm.
- a case containing any explosive charge, as for blasting.
- any small container for powder, liquid, or gas, made for ready insertion into some device or mechanism: an ink cartridge for a pen.
- a lightproof metal or plastic container for a roll of film, usually containing both the supply and take-up spools, as well as a pressure plate, for rapid loading without the necessity of threading the film.
- pickup (def. 8).
- a flat, compact container enclosing an endless loop of audiotape, operated by inserting into a slot in a player.
- a cylindrical, usually metal casing containing an explosive charge and often a bullet, for a rifle or other small arms
- a case for an explosive, such as a blasting charge
- an electromechanical transducer in the pick-up of a record player, usually either containing a piezoelectric crystal (crystal cartridge) or an electromagnet (magnetic cartridge)
- a container for magnetic tape that is inserted into a tape deck in audio or video systems. It is about four times the size of a cassette
- a light-tight film container that enables a camera to be loaded and unloaded in normal light
- a removable unit in a printer which contains black or coloured ink
- a removable unit in a computer, such as an integrated circuit, containing software
