polydactyly vs human

polydactyly and human both are nouns.

Word	Noun	Adjective	Verb	Adverb
polydactyly	Yes	No	No	No
human	Yes	Yes	No	No

polydactyly (noun)	human (noun)
birth defect characterized by the presence of more than the normal number of fingers or toes	any living or extinct member of the family Hominidae characterized by superior intelligence, articulate speech, and erect carriage

polydactyly (adjective)	human (adjective)
	having human form or attributes as opposed to those of animals or divine beings
	characteristic of humanity
	relating to a person