natural philosophy vs nuclear

natural philosophy is a noun but nuclear is not a noun.

Word	Noun	Adjective	Verb	Adverb
natural philosophy	Yes	No	No	No
nuclear	No	Yes	No	No

natural philosophy (noun)	nuclear (noun)
the science of matter and energy and their interactions

natural philosophy (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