behavioural vs behavior

behavioural is not a noun while behavior is a noun.

Word	Noun	Adjective	Verb	Adverb
behavioural	No	Yes	No	No
behavior	Yes	No	No	No

behavioural (noun)	behavior (noun)
	manner of acting or controlling yourself
	(psychology) the aggregate of the responses or reactions or movements made by an organism in any situation
	(behavioral attributes) the way a person behaves toward other people
	the action or reaction of something (as a machine or substance) under specified circumstances

behavioural (adjective)	behavior (adjective)
of or relating to behavior