nuclear vs physics

nuclear is not a noun while physics is a noun.

Word	Noun	Adjective	Verb	Adverb
nuclear	No	Yes	No	No
physics	Yes	No	No	No

nuclear (noun)	physics (noun)
	the science of matter and energy and their interactions
	the physical properties, phenomena, and laws of something

nuclear (adjective)	physics (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