steam injector vs ejector

steam injector and ejector both are nouns.

Word	Noun	Adjective	Verb	Adverb
steam injector	Yes	No	No	No
ejector	Yes	No	No	No

As nouns, steam injector and ejector are synonyms defined as:

steam injector and ejector: An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.

Other synonyms of steam injector include eductor-jet pump, injector, steam ejector, thermocompressor.

steam injector (noun)	ejector (noun)
An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.	a mechanism in a firearm that ejects the empty shell case after firing
	An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.
	a person who ousts or supplants someone else