pilus vs mammalian

pilus and mammalian both are nouns.

Word	Noun	Adjective	Verb	Adverb
pilus	Yes	No	No	No
mammalian	Yes	Yes	No	No

pilus (noun)	mammalian (noun)
hairlike structure especially on the surface of a cell or microorganism	any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
any of the cylindrical filaments characteristically growing from the epidermis of a mammal

pilus (adjective)	mammalian (adjective)
	of or relating to the class Mammalia