Deuterium Injector

The Deuterium Injector or Matter Injector is a device which is located in the Matter-Antimatter Reaction Assembly which compresses and precisely streams Deuterium into the Dilithium Articulation Frame in a starship's warp core. (ENT: "Acquisition")

The stream of Matter and antimatter collide producing energy in the annhilation of the matter stream which is then focused aand directed by the Dilithium Crystal.

In 2372 in the mirror universe, Benjamin Sisko took the Defiant's deuterium injector offline and online again. It required the Plasma Flow Regulators to be shut off. (DS9: "Shattered Mirror")

The Red Squad cadets often had trouble with the USS Valiant's deuterium injector startup routine, as the system often experienced power spikes. When he came aboard, Nog suggested doing what Chief O'Brien had done on the USS Defiant, by recalibrating the Lateral Impulse Control System. (DS9: "Valiant")