CARTRIDGE

noun Etymology: alteration of earlier cartage, modification of Middle French cartouche Date: 1626 a case or container that holds a substance, device, or material which is difficult, troublesome, or awkward to handle and that usually can be easily changed: as, a tube (as of metal) containing a complete charge for a firearm and usually an initiating device (as a primer), a case containing an explosive charge for blasting, an often cylindrical container for insertion into a larger mechanism or apparatus, cassette 2, a small case that contains a phonograph needle and transducer and is attached to a tonearm, a removable case containing a magnetic tape or one or more disks and used as a computer storage medium, a case for holding printed circuit chips containing a computer program