imbricated vs phytology

imbricated is not a noun while phytology is a noun.

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

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

imbricated (adjective)	phytology (adjective)
used especially of leaves or bracts; overlapping or layered as scales or shingles