scatological vs scatology

scatological is not a noun while scatology is a noun.

Word	Noun	Adjective	Verb	Adverb
scatological	No	Yes	No	No
scatology	Yes	No	No	No

scatological (noun)	scatology (noun)
	(medicine) the chemical analysis of excrement (for medical diagnosis or for paleontological purposes)
	a preoccupation with obscenity (especially that dealing with excrement or excretory functions)

scatological (adjective)	scatology (adjective)
dealing pruriently with excrement and excretory functions