steam jet ejector vs ejector

steam jet ejector and ejector both are nouns.

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

As nouns, ejector is a hypernym of steam jet ejector; that is, ejector is a word with a broader meaning than steam jet ejector:

steam jet ejector: an ejector that uses steam as the motive fluid to remove any non-condensible gases that may be present in the surface condenser.
ejector: An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.

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

steam jet ejector (noun)	ejector (noun)
an ejector that uses steam as the motive fluid to remove any non-condensible gases that may be present in the surface condenser.	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