biological science vs regeneration

biological science and regeneration both are nouns.

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

biological science (noun)	regeneration (noun)
the science that studies living organisms	the activity of spiritual or physical renewal
	forming again (especially with improvements or removal of defects); renewing and reconstituting
	(biology) growth anew of lost tissue or destroyed parts or organs
	feedback in phase with (augmenting) the input