FET vs electronic transistor

FET and electronic transistor both are nouns.

Word	Noun	Adjective	Verb	Adverb
FET	Yes	No	No	No
electronic transistor	Yes	No	No	No

As nouns, electronic transistor is a hypernym of FET; that is, electronic transistor is a word with a broader meaning than FET:

FET: a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field
electronic transistor: a semiconductor device capable of amplification

Other hypernyms of FET include junction transistor, transistor.

FET (noun)	electronic transistor (noun)
a transistor in which most current flows in a channel whose effective resistance can be controlled by a transverse electric field	a semiconductor device capable of amplification