cartridge

noun

1. 1

   ammunition consisting of a cylindrical casing containing an explosive charge and a bullet; fired from a rifle or handgun

2. 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. 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. 4

   a light-tight supply chamber holding the film and supplying it for exposure as required