An antimatter injector is a component of the warp drive of a starship.
In 2376, Iliana Ghemor sabotaged the antimatter injector of the warp core of a Besinian freighter so that when the crew of the USS Defiant activated the warp core of the alien vessel, the antimatter injector cycled up to release at a extremely high rate. This caused the injector to explode and destroyed the Besinian freighter. (DS9 - Worlds of Star Trek: Deep Space Nine novel: Bajor: Fragments and Omens, DS9 novel: The Soul Key)
External link
- Antimatter injector article at Memory Alpha, the wiki for canon Star Trek.