atomistic theory is a noun meaning "(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles". It carries one recorded sense.
(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles
“the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe”
chemistry
Definitions, synonyms and semantic relations for atomistic theory come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.