lobate vs lobe

lobate is not a noun while lobe is a noun.

Word	Noun	Adjective	Verb	Adverb
lobate	No	Yes	No	No
lobe	Yes	No	No	No

lobate (noun)	lobe (noun)
	a rounded projection that is part of a larger structure
	(anatomy) a somewhat rounded subdivision of a bodily organ or part
	the enhanced response of an antenna in a given direction as indicated by a loop in its radiation pattern
	(botany) a part into which a leaf is divided

lobate (adjective)	lobe (adjective)
having or resembling a lobe or lobes
having deeply indented margins but with lobes not entirely separate from each other