CARTRIDGE

a container holding the chemical in a fire extinguisher. When a cartridge is used up the extinguisher should be loaded with a fresh one. —Welcome to the SO Glossary Final approval 2-Mar-90

a container holding the chemical in a fire extinguisher. When a cartridge is used up the extinguisher should be loaded with a fresh one.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.