injector - a contrivance for injecting; an apparatus for injecting water into the boiler of a steam-engine. Also, a device for injecting fuel into the combustion chamber or its intakes in an internal-combustion engine (or into the furnace of a steam engine), injektor - suru-jugapump, jugaseade gaasi või auru kokkusurumiseks või vedeliku surumiseks mahutisse.