hibernate vs hibernation

hibernate is not a noun while hibernation is a noun.

Word	Noun	Adjective	Verb	Adverb
hibernate	No	No	Yes	No
hibernation	Yes	No	No	No

hibernate (noun)	hibernation (noun)
	the act of retiring into inactivity
	the torpid or resting state in which some animals pass the winter
	cessation from or slowing of activity during the winter; especially slowing of metabolism in some animals

hibernate (verb)	hibernation (verb)
sleep during winter
be in an inactive or dormant state