perambulate vs perambulation

perambulate is not a noun while perambulation is a noun.

Word	Noun	Adjective	Verb	Adverb
perambulate	No	No	Yes	No
perambulation	Yes	No	No	No

perambulate (noun)	perambulation (noun)
	a leisurely walk (usually in some public place)
	a walk around a territory (a parish or manor or forest etc.) in order to officially assert and record its boundaries

perambulate (verb)	perambulation (verb)
walk with no particular goal
make an official inspection on foot of (the bounds of a property)