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Synonyms

atomic energy

American  

noun

  1. nuclear energy.

atomic energy British  

noun

  1. another name for nuclear energy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
atomic energy Scientific  

  1. See nuclear energy

Etymology

Origin of atomic energy

First recorded in 1905–10

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.

The site of Ukraine's defunct Chernobyl nuclear plant briefly lost off-site power in the shutdown, the UN atomic energy watchdog said.

From Barron's • Jan. 31, 2026

In Brussels, at the height of the Cold War, the Soviet Union and the U.S. had dueling pavilions—one touting Sputnik, the other the “American dream”—but the fair’s theme was peaceful uses of atomic energy.

From The Wall Street Journal • Jan. 14, 2026

These interactions can produce small shifts in atomic energy levels, and quantum spin sensors detect those shifts as pseudomagnetic fields.

From Science Daily • Dec. 6, 2025

Relations between the two nations cooled considerably – Canada suspended support to India’s atomic energy programme.

From BBC • Oct. 15, 2024

President Dwight Eisenhower installed him as his personal advisor on atomic energy in March and appointed him to the AEC chairmanship three months later.

From "Big Science" by Michael Hiltzik

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.