(chemistry, historical) A hypothetical ring-shaped mass of elementary matter in continuous vortical motion, once regarded as the typical form and structure of the chemical atom.

plural of vortex atom

(logic) A formula which does not have smaller subformulas.

synonym of nuclear power (normally sense 1)

plural of atomic orbital

plural of atomic formula

plural of atom cocktail

plural of atomic authorization

plural of atomic cocktail

plural of atom laser