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Definitions

atom

[at-uhm] / ˈæt əm /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In this case, each carbon ring shifted from bonding through all five carbon atoms to bonding through only one carbon atom.

From Science Daily • May 22, 2026

Extrapolating backward in time, Lemaître proposed the idea of a primeval atom: a singularity from which the universe emerged in a uniquely hot, dense state.

From The Wall Street Journal • May 19, 2026

That gap measures only about 0.14 nanometers, making it thinner than a single sulfur atom.

From Science Daily • May 9, 2026

The first phase involved determining if he predated the "nuclear age", which began in 1945 when the US first tested the atom bomb in New Mexico, the coroner heard.

From BBC • Apr. 14, 2026

“You must not call it a carnival. Every year on August sixth we remember those who died when the atom bomb was dropped on our city. It is a memorial day.”

From "Sadako and the Thousand Paper Cranes" by Eleanor Coerr




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