atomic theory

noun

The theory that all gross matter is composed of atoms.

Similar
atomismatomist theoryatomistic theory

Meanings

nounatomic theory (plural atomic theories)

plural atomic theories

  1. natural sciencesThe theory that all gross matter is composed of atoms.
  2. natural sciencesAny of several theories that explain the structure of the atom, and of subatomic particles.

Synonyms & antonyms

noun(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles

Similar
atomismatomist theoryatomistic theory
Broader
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Chinese Mandarin 原子論 /原子论, 原子說 /原子说
  • 原子論 /原子论 (yuánzǐlùn)theory that all gross matter is composed of atoms
  • 原子說 /原子说 (yuánzǐshuō)theory that all gross matter is composed of atoms
  • 原子理論 /原子理论 (yuánzǐ lǐlùn)theory that explains the structure of the atom
  • 原子結構理論 /原子结构理论 (yuánzǐ jiégòu lǐlùn)theory that explains the structure of the atom
Dutch atomisme, atoomtheorie
  • atomismetheory that all gross matter is composed of atoms
  • atoomtheorietheory that explains the structure of the atom
Finnish atomiteoria, atomiteoria
  • atomiteoriatheory that all gross matter is composed of atoms
  • atomiteoriatheory that explains the structure of the atom
Cite this entry
APA

atomic theory. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/atomic%20theory

MLA

“atomic theory.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/atomic%20theory. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “atomic theory,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/atomic%20theory.

Source: atomic theory on Wiktionary, CC BY-SA 4.0.