crystal rectifier vs junction rectifier

crystal rectifier and junction rectifier both are nouns.

Word	Noun	Adjective	Verb	Adverb
crystal rectifier	Yes	No	No	No
junction rectifier	Yes	No	No	No

As nouns, crystal rectifier and junction rectifier are synonyms defined as:

crystal rectifier and junction rectifier: a semiconductor that consists of a p-n junction

Other synonyms of crystal rectifier include diode, semiconductor diode.

crystal rectifier (noun)	junction rectifier (noun)
a semiconductor that consists of a p-n junction	a semiconductor that consists of a p-n junction