medical specialty vs succedaneum

medical specialty and succedaneum both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical specialty	Yes	No	No	No
succedaneum	Yes	No	No	No

medical specialty (noun)	succedaneum (noun)
the branches of medical science that deal with nonsurgical techniques	(medicine) something that can be used as a substitute (especially any medicine that may be taken in place of another)