weakly interacting massive particle vs physics

weakly interacting massive particle and physics both are nouns.

Word	Noun	Adjective	Verb	Adverb
weakly interacting massive particle	Yes	No	No	No
physics	Yes	No	No	No

weakly interacting massive particle (noun)	physics (noun)
a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe	the science of matter and energy and their interactions
	the physical properties, phenomena, and laws of something