caudated vs caudate

caudated is not a noun while caudate is a noun.

Word	Noun	Adjective	Verb	Adverb
caudated	No	Yes	No	No
caudate	Yes	Yes	No	No

As adjectives, caudated and caudate are synonyms defined as:

caudated (noun)	caudate (noun)
	amphibians that resemble lizards
	a tail-shaped basal ganglion located in a lateral ventricle of the brain

caudated (adjective)	caudate (adjective)
having a tail or taillike appendage	having a tail or taillike appendage
	(of a leaf shape) tapering gradually into a long taillike tip