ventral vs biology

ventral is not a noun while biology is a noun.

Word	Noun	Adjective	Verb	Adverb
ventral	No	Yes	No	No
biology	Yes	No	No	No

ventral (noun)	biology (noun)
	the science that studies living organisms
	all the plant and animal life of a particular region
	characteristic life processes and phenomena of living organisms

ventral (adjective)	biology (adjective)
toward or on or near the belly (front of a primate or lower surface of a lower animal)
nearest to or facing toward the axis of an organ or organism