atomic theory

n. theory explaining the structure of the atom; theory which asserts that all matter is comprised of atoms

This article focuses on the historical models of the atom. For a history of the study of how atoms combine to form molecules, see History of the molecule. In  chemistry and physics, atomic theory is a theory of the nature of matter, which states that matter is composed of discrete units called atoms, as opposed to obsolete beliefs that matter could be divided into any arbitrarily small quantity.
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Noun
1. a theory of the structure of the atom
(hypernym) scientific theory
(hyponym) Bohr theory
(part-holonym) nuclear physics, atomic physics, nucleonics
2. (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"
(synonym) atomism, atomist theory, atomistic theory
(hypernym) theory
(classification) chemistry, chemical science

An explanation of chemical properties and processes that assumes that tiny particles called atoms are the ultimate building blocks of matter.

adj.
نظريہ, جوہر , نظريہ کہ عناصر ايسے غير تقسيم پذير مادہ پر مشتمل ہيں جو اپنا مخصوص وزن اضافي رکھتے ہيں , مختلف اشيا کے جوہر جب ترکيب پاتے ہيں تو ايک خاص تناسب کے ساتھ ملتے ہيں, نيز ان کا تناسب وہي ہوتا ہے جس ميں عناصر اور برکيات کيميائي ترکيب پاتے ہيں