n. One who, or that which, produces ignition; especially, a contrivance for igniting the powder in a torpedo or the like. [ Written also igniter. ] [ 1913 Webster ]
n. 1. a substance used to ignite or kindle a fire. Syn. -- ignitor, lighter. [ WordNet 1.5 ]
2. a device for lighting or igniting fuel or charges or fires. Syn. -- lighter, light, ignitor. [ WordNet 1.5 ]