ATOMIC THEORY
\ɐtˈɒmɪk θˈi͡əɹi], \ɐtˈɒmɪk θˈiəɹi], \ɐ_t_ˈɒ_m_ɪ_k θ_ˈiə_ɹ_i]\
Definitions of ATOMIC THEORY
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By DataStellar Co., Ltd
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(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"
By Princeton University
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See under theory.
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Of the ancients, the t. that all matter consists of very minute, hard, absolutely indestructible bodies called atoms.
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Of Dalton and succeeding chemists, the t. that molecules of substances are built up of one or more atoms, each of which represents a certain definite amount of a chemical element, which amount always remains constant, going into and out of combination without suffering increase or decrease.
By Smith Ely Jelliffe
