ATOM Synonyms: 98 Similar and Opposite Words

atom

noun

ˈa-təm

Definition of atom

as in particle

a very small piece give me just one atom of information about the novel's surprise ending

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of atom The thermal jiggling of atoms is a constant threat to the precision needed for detailed calculations. — Quanta Magazine, 15 July 2026 Two qubits can encode four possibilities at the same time; 10 qubits can encode 1,024; and 300 qubits can represent more states than there are atoms in the universe. — Aldo Romero, The Conversation, 15 July 2026 The team initially searched for simpler sugars with three carbon atoms but didn’t find any. — Katie Hunt, CNN Money, 14 July 2026 Dave Kuszmar There aren’t many true secrets left in today’s world, but how to make atom-splitting weapons of mass destruction is one of them. — IEEE Spectrum, 14 July 2026 See All Example Sentences for atom

Recent Examples of Synonyms for atom

Noun

For instance, the small particles in the smoke can inflame the lungs, trigger coughing and worsen existing health conditions.

— Jen Reeder, Forbes.com, 23 July 2026
Each millimeter-sized TRISO particle consists of a High-Assay Low-Enriched Uranium (HALEU) core surrounded by three specialized layers that serve distinct physical functions.

— Aman Tripathi, Interesting Engineering, 23 July 2026

Definition of particle

Noun

Tucked into the foothills above Point Dome, the property is listed for a speck under $5 million.

— Abby Montanez, Robb Report, 17 July 2026
Rather than waiting several years to look at the object through the VLT once more, Sutlieff, Bonse and their colleagues dove into older, archival imagery of the star system, looking for signs of their speck.

— Adam Kovac, Scientific American, 15 July 2026

Definition of speck

Noun

With that in mind, the interactions of various peptide stacks with signaling molecules and endocrine systems in the body—and long term outcomes —remains unclear.

— Robert Glatter, Forbes.com, 22 July 2026
Scientists have now identified numerous genes and expressed molecules that are statistically associated with blight resistance in Asian chestnuts.

— Steve Strauss, The Conversation, 22 July 2026

Definition of molecule

Noun

One image of her right knee showed flecks of blue plastic that prosecutors said came from an inflatable pool Burke used to collect blood while dismembering her body.

— Nancy Dillon, Rolling Stone, 21 July 2026
Someone unfamiliar with salt bread might even suspect a major baking error, seeing a questionably smooth croissant that entirely missed the lamination process, adorned with only a few flecks of salt acting as its saving grace.

— Candy Hom, AJC.com, 19 July 2026

Definition of fleck

Noun

On a warm July afternoon near Fairbanks, a volunteer with the Alaska Bee Atlas kneels beside a patch of blooming fireweed, gently sweeping a net through the air.

— Timothy Bundy, Washington Post, 17 July 2026
How to spot Perseid shooting stars Perseid meteors can be spotted anytime after dark from tonight onwards, streaking away from a patch of sky, or radiant, located close to the red supergiant star Eta Persei in the constellation Perseus.

— Anthony Wood, Space.com, 17 July 2026

Definition of patch

Noun

The performance moved smoothly along at a breakneck pace, evenly showcasing each of the big stars, while still managing to feel like a cohesive performance as opposed to just a series of snippets sewn together.

— Jim Harrington, Mercury News, 19 July 2026
In a separate June 29 filing, Clenney’s lawyers argued prosecutors are presenting a misleading snippet of the February 2022 elevator video.

— Sarah Rumpf-Whitten, FOXNews.com, 18 July 2026

Definition of snippet

Browse Nearby Words

atolls

atom

atomic

See all Nearby Words

Cite this Entry

Style

“Atom.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/atom. Accessed 26 Jul. 2026.

Copy Citation

Synonyms of atom

noun

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on atom

More from Merriam-Webster

Word of the Day

aerie

Popular in Grammar & Usage

Democracy or Republic: What's the difference?

Merriam-Webster’s Great Big List of Words You Love to Hate

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Do you 'say your piece' or 'say your peace'?

Why is '-ed' sometimes pronounced at the end of a word?

Popular in Wordplay

It's a Scorcher! Words for the Summer Heat

The Longest Long Words List

Ten Words Ending with a Silent ‘T’

The Words of the Week - Jul 24

Why do we say 'fly off the handle'?

Popular

Democracy or Republic: What's the difference?

It's a Scorcher! Words for the Summer Heat

The Longest Long Words List

Games & Quizzes