injector
nounUK /ɪnˈdʒɛktə/
US /ɪnˈdʒɛktər/
A thing that pushes liquid or fuel into something else.
The mechanic replaced the broken fuel injector in the car's engine.
OTHER MEANINGS
2. A device used to force medicine or another substance into the body.
The nurse used an injector to give the patient the medicine quickly.
3. A part in an engine that sprays fuel into the cylinder.
A clogged fuel injector can make the engine run poorly.
4. A person or machine that introduces something into a system or place.
The injector added color to the plastic as it was being made.