Cartridge

n. shell of a bullet; removable unit containing a data storage medium (Computers); spool of film for a camera

Cartridge can refer to:Cartridge (electronics), a module to be inserted into a larger piece of equipment4-track cartridge, an analogue music storage format popular from the late 1950s to the early 1970s8-track cartridge, an analogue music storage format popular from the late 1960s to the early 1980sCartridge (firearms), a round of charge-and-bullet ammunitionMagnetic cartridge, the removable part of a record player (turntable) arm holding the stylus (needle)Ink cartridge, a replaceable component of an inkjet printer that contains the ink
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A cartridge or round packages the bullet, gunpowder and primer into a single metallic case precisely made to fit the firing chamber of a firearm. The primer is a small charge of impact-sensitive chemical that may be located at the center of the case head (centerfire ammunition) or at its rim (rimfire ammunition). Electrically-fired cartridges have also been made. A cartridge without a bullet is called a blank.
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Cartridge, n in dentistry, a device of various configuration and composition used with a syringe for the application of anesthetic or other [more]Cartridge - Community and Resources

Noun
1. ammunition consisting of a cylindrical casing containing an explosive charge and a bullet; fired from a rifle or handgun
(hypernym) ammunition, ammo
(hyponym) ball cartridge
(part-meronym) bullet, slug
2. a light-tight supply chamber holding the film and supplying it for exposure as required
(synonym) magazine
(hypernym) supply chamber
(part-holonym) camera, photographic camera
3. a module designed to be inserted into a larger piece of equipment; "he loaded a cartridge of fresh tape into the tape deck"
(hypernym) module
(hyponym) ink cartridge
4. an electro-acoustic transducer that is the part of the arm of a record player that holds the needle and that is removable
(synonym) pickup
(hypernym) electro-acoustic transducer
(hyponym) crystal pickup
(part-holonym) record player, phonograph
(part-meronym) stylus

(n.)
A complete charge for a firearm, contained in, or held together by, a case, capsule, or shell of metal, pasteboard, or other material.