1
a
: of, relating to, or concerned with atoms
atomic physics
b
: nuclear sense 2
atomic energy
2
a
: marked by acceptance of the theory of atomism
3
: minute
4
of a chemical element
: existing in the state of separate atoms
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
And unlike nuclear fission, there is no atomic waste involved.
—
Ella Nilsen, CNN Money, 6 May 2025
Steven Pifer, a former American ambassador to Ukraine and one of the top nuclear proliferation experts in the U.S., says Zelensky likely aimed to impel NATO to open membership to Ukraine rather than actually start a clandestine atomic weapons program.
—Kevin Holden Platt, Forbes.com, 5 May 2025
The film focuses in part on the true story of a Japanese man during World War II who survived the atomic blast at Hiroshima, got on a train to Nagasaki, and then survived the nuclear explosion in that city.
—Anthony D'alessandro, Deadline, 2 May 2025
Zhang thinks the atomic liftoff method developed by her team can be applied to other films, not just ones containing lead.
—ArsTechnica, 1 May 2025
See All Example Sentences for atomic
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Ella Nilsen, CNN Money, 6 May 2025
Steven Pifer, a former American ambassador to Ukraine and one of the top nuclear proliferation experts in the U.S., says Zelensky likely aimed to impel NATO to open membership to Ukraine rather than actually start a clandestine atomic weapons program.
—Kevin Holden Platt, Forbes.com, 5 May 2025
The film focuses in part on the true story of a Japanese man during World War II who survived the atomic blast at Hiroshima, got on a train to Nagasaki, and then survived the nuclear explosion in that city.
—Anthony D'alessandro, Deadline, 2 May 2025
Zhang thinks the atomic liftoff method developed by her team can be applied to other films, not just ones containing lead.
—ArsTechnica, 1 May 2025
See All Example Sentences for atomic
Cite this Entry
“Atomic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atomic. Accessed 18 May. 2025.
Copy CitationKids Definition
atomic
adjective
atom·ic
ə-ˈtäm-ik 
1
: of, relating to, or concerned with atoms, atomic bombs, or nuclear energy
atomic physics
the atomic age
atomic energy
2
: extremely small
3
: found in the state of separate atoms
atomic hydrogen
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