exploder

Short definition from Wiktionary

Noun

1. 1
   Someone or something that explodes.
2. 2
   A device to trigger explosive detonators such as a plunger or crank operated electrical generator.
3. 3
   A device to trigger explosions in torpedoes.
4. 4
   A person who directs their anger outward.
5. 5
   One who rejects an opinion or scheme with open contempt.