bicornate vs bicorn

bicornate is not a noun while bicorn is a noun.

Word	Noun	Adjective	Verb	Adverb
bicornate	No	Yes	No	No
bicorn	Yes	Yes	No	No

As adjectives, bicornate and bicorn are synonyms defined as:

Other synonyms of bicornate include bicorned, bicornuate, bicornuous.

bicornate (noun)	bicorn (noun)
	a cocked hat with the brim turned up to form two points

bicornate (adjective)	bicorn (adjective)
having two horns or horn-shaped parts	having two horns or horn-shaped parts