mesomorphic vs mesomorph

mesomorphic is not a noun while mesomorph is a noun.

Word	Noun	Adjective	Verb	Adverb
mesomorphic	No	Yes	No	No
mesomorph	Yes	No	No	No

mesomorphic (noun)	mesomorph (noun)
	a person with a well-developed muscular body

mesomorphic (adjective)	mesomorph (adjective)
having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer