involute vs phytology

involute is not a noun while phytology is a noun.

Word	Noun	Adjective	Verb	Adverb
involute	No	Yes	No	No
phytology	Yes	No	No	No

involute (noun)	phytology (noun)
	the branch of biology that studies plants

involute (adjective)	phytology (adjective)
(of some shells) closely coiled so that the axis is obscured
especially of petals or leaves in bud; having margins rolled inward