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
Synonyms
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
The simulations need to account for atomic vibrations that occur on the scale of femtoseconds while simulating physical and chemical changes, such as changes in an atom’s position relative to its neighbors, that emerge on the scale of microseconds.
—
The Physics Arxiv Blog, Discover Magazine, 24 May 2024
The three-hour historical epic about the dawn of the atomic era became an improbable summer sensation, grossing nearly $1 billion globally and sweeping the Oscars.
—Brent Lang, Variety, 18 May 2024
See all Example Sentences for atomic 
The Physics Arxiv Blog, Discover Magazine, 24 May 2024
The three-hour historical epic about the dawn of the atomic era became an improbable summer sensation, grossing nearly $1 billion globally and sweeping the Oscars.
—Brent Lang, Variety, 18 May 2024
See all Example Sentences for atomic
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'atomic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near atomic
Cite this Entry
“Atomic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atomic. Accessed 1 Jun. 2024.
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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