1 atomic | Definition of atomic

atomic

adjective
atom·​ic | \ É™-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

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Other Words from atomic

atomically \ -​mi-​k(É™-​)lÄ“ How to pronounce atomically (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

Even the significance of the unquestioned coups can be exaggerated: the Allied victory on D Day ultimately rested on numbers and equipment, while atomic espionage only marginally accelerated a Russian bomb that was bound to be developed anyway. Adam Gopnik, The New Yorker, "Are Spies More Trouble Than They’re Worth?," 26 Aug. 2019 In 1945, a day after the atomic bombing of Nagasaki, Imperial Japan conveyed its willingness to surrender provided the status of Emperor Hirohito remained unchanged. BostonGlobe.com, "This day
in history," 10 Aug. 2019
Fermions include electrons and the quarks that are the constituents of protons and neutrons in atomic nuclei. Philip Ball, Scientific American, "Supergravity Snags Super Award: $3-Million Special Breakthrough Prize," 6 Aug. 2019 Superionic materials are dual beasts, part solid and part liquid, that on a microscopic level consist of a crystal lattice permeated by free floating atomic nuclei that can carry electrical charge. National Geographic, "Bizarre form of hot ice seen on Earth," 8 May 2019 Trump withdrew from the nuclear deal Iran struck with world powers in 2015, an agreement that curbed its atomic energy activities in return for widespread sanctions relief. Erin Cunningham, BostonGlobe.com, "Gibraltar releases Iranian supertanker despite US plea," 15 Aug. 2019 Dunn’s minimalist bass grooves and the atomic timekeeping of Al Jackson, one of the decade’s best drummers. Billboard Staff, Billboard, "The 100 Best Songs of 1969: Staff Picks," 14 Aug. 2019 On Friday, Rosatom, the Russian state agency for atomic power, disclosed that there was a nuclear element involved and said five of its employees had died and several were in the hospital as a result of the accident. Sabra Ayresmoscow Correspondent, Los Angeles Times, "After a deadly nuclear missile test in Russia’s north, the Kremlin stuck to an old Soviet habit: Secrecy," 13 Aug. 2019 Too little is made of Tokyo’s atrocities, the sneak attack on Pearl Harbor or the recalcitrance of Japan’s military leaders in the late stages of the war — the catalyst for the deployment of atomic weapons. Time, "What Happened to the Enola Gay After It Dropped the Atomic Bomb," 6 Aug. 2019

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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More Definitions for atomic

atomic

adjective

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

atomic

adjective
atom·​ic | \ É™-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