- atomic theory - a theory of the structure of the atom
--1 is a kind of scientific theory
--1 is a part of nuclear physics, atomic physics, nucleonics
--1 has particulars: Bohr theory; Rutherford atom- atomism, atomic theory, atomist theory, atomistic theory - (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"
--2 is a kind of theory
- atomism, atomic theory, atomist theory, atomistic theory - (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"