bicorn vs bicornuate

bicorn is a noun but bicornuate is not a noun.

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

As adjectives, bicorn and bicornuate are synonyms defined as:

Other synonyms of bicorn include bicornate, bicorned, bicornuous.

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

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