atomist theory vs atomistic theory

atomist theory and atomistic theory both are nouns.

Word	Noun	Adjective	Verb	Adverb
atomist theory	Yes	No	No	No
atomistic theory	Yes	No	No	No

As nouns, atomist theory and atomistic theory are synonyms defined as:

atomist theory and atomistic theory: (chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles

Other synonyms of atomist theory include atomic theory, atomism.

atomist theory (noun)	atomistic theory (noun)
(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles	(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles