imaging vs medical specialty

imaging and medical specialty both are nouns.

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

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