atom·​ic | \ ə-ˈtä-mik How to pronounce atomic (audio) \

Definition of atomic

1a : of, relating to, or concerned with atoms atomic physics
b : nuclear sense 2 atomic energy
2a : marked by acceptance of the theory of atomism
3 : minute
4 of a chemical element : existing in the state of separate atoms

Other Words from atomic

atomically \ ə-​ˈtä-​mi-​k(ə-​)lē How to pronounce atomic (audio) \ adverb

Examples of atomic in a Sentence

made atomic adjustments to the clock's mechanism to keep it from whirring as it ran
Recent Examples on the Web Iran also isn’t slowing down advances in its atomic program, further raising the stakes in talks. Tia Goldenberg, ajc, 12 Dec. 2021 Iran maintains that its atomic program is peaceful. Compiled Democrat-gazette Staff From Wire Reports, Arkansas Online, 30 Nov. 2021 Made of Italian marble with protective cork backing, this set of four features popular grape varieties with their own atomic symbols and numbers. Lana Bortolot, Forbes, 23 Dec. 2021 Iran has agreed to let the United Nations atomic agency monitor its production of critical centrifuge parts, ending a three-month deadlock and averting a fresh diplomatic clash with the U.S. Laurence Norman, WSJ, 15 Dec. 2021 The government, the audience was told, planned to build a testversion of a small nuclear reactor at a new atomic research complex — the country’s largest ever — that is under construction in the village of Gampo. New York Times, 13 Dec. 2021 In contrast, random numbers produced using principles from quantum physics—such as observing the spin of a sub-atomic particle that is in a quantum state—guarantees true randomness. Jeremy Kahn, Fortune, 7 Dec. 2021 And once the 1960s kicked off, the material offered the perfect structure and shine for the atomic looks of Courrèges. Kristen Bateman, Vogue, 3 Dec. 2021 The series attempts to rescue the novels from their atomic-age limitations but largely squanders its material on a clone of every other blockbuster fantasy quest. Julian Lucas, The New Yorker, 1 Nov. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'atomic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of atomic

1678, in the meaning defined at sense 1a

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Statistics for atomic

Last Updated

13 Jan 2022

Cite this Entry

“Atomic.” Dictionary, Merriam-Webster, Accessed 23 Jan. 2022.

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More Definitions for atomic



English Language Learners Definition of atomic

: of or relating to atoms
: of, relating to, or using the energy that is produced when atoms are split apart


atom·​ic | \ ə-ˈtä-mik How to pronounce atomic (audio) \

Kids Definition of atomic

1 : of or relating to atoms atomic physics
2 : nuclear sense 3 atomic energy

More from Merriam-Webster on atomic

Nglish: Translation of atomic for Spanish Speakers

Britannica English: Translation of atomic for Arabic Speakers


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