biological science vs ventral

biological science is a noun but ventral is not a noun.

Word	Noun	Adjective	Verb	Adverb
biological science	Yes	No	No	No
ventral	No	Yes	No	No

biological science (noun)	ventral (noun)
the science that studies living organisms

biological science (adjective)	ventral (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