nucleonics vs physics

nucleonics and physics both are nouns.

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

As nouns, physics is a hypernym of nucleonics; that is, physics is a word with a broader meaning than nucleonics:

nucleonics: the branch of physics that studies the internal structure of atomic nuclei
physics: the science of matter and energy and their interactions

Other hypernyms of nucleonics include natural philosophy.

nucleonics (noun)	physics (noun)
the branch of physics that studies the internal structure of atomic nuclei	the science of matter and energy and their interactions
	the physical properties, phenomena, and laws of something