biological science vs nuclear

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

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

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

biological science (adjective)	nuclear (adjective)
	(weapons) deriving destructive energy from the release of atomic energy
	of or relating to or constituting the nucleus of an atom
	of or relating to or constituting the nucleus of a cell
	constituting or like a nucleus