earlobe vs pinna

earlobe and pinna both are nouns.

Word	Noun	Adjective	Verb	Adverb
earlobe	Yes	No	No	No
pinna	Yes	No	No	No

earlobe (noun)	pinna (noun)
the fleshy pendulous part of the external human ear	the externally visible cartilaginous structure of the external ear
	division of a usually pinnately divided leaf