medical specialty vs imaging

medical specialty and imaging both are nouns.

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

medical specialty (noun)	imaging (noun)
the branches of medical science that deal with nonsurgical techniques	(medicine) obtaining pictures of the interior of the body
	the ability to form mental images of things or events