organismal vs organism

organismal is not a noun while organism is a noun.

Word	Noun	Adjective	Verb	Adverb
organismal	No	Yes	No	No
organism	Yes	No	No	No

organismal (noun)	organism (noun)
	a living thing that has (or can develop) the ability to act or function independently
	a system considered analogous in structure or function to a living body

organismal (adjective)	organism (adjective)
of or relating to or belonging to an organism (considered as a whole)