determinate vs phytology

determinate is not a noun while phytology is a noun.

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

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

determinate (adjective)	phytology (adjective)
precisely determined or limited or defined; especially fixed by rule or by a specific and constant cause
not continuing to grow indefinitely at the apex
supplying or being a final or conclusive settlement