- a person or thing that injects.
- a device for injecting feedwater into a boiler against high pressure by means of a jet of steam.
- Also called fuel injector.a mechanism consisting of a pump, valves, and nozzles for spraying fuel into the cylinders of an internal-combustion engine.
- a person or thing that injects
- a device for spraying fuel into the combustion chamber of an internal-combustion engine
- Also: inspirator a device for forcing water into a steam boiler