nuclear energy

[noo-klee-er en-er-jee, nyoo-] / ˈnu kli ər ˈɛn ər dʒi, ˈnju- /

NOUN

radioactive energy source

Synonyms

STRONGEST

atomic energy nuclear power

WEAK

atomic power fission power fusion power nuclear fission power nuclear fusion power thermonuclear energy thermonuclear power

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.

Walmart, which has pledged to eliminate net carbon emissions from its U.S. operations by 2040, will also receive the environmental attributes associated with the nuclear energy, which generates electricity without carbon emissions.

From Barron's • Jun. 23, 2026

Switzerland is less reliant on oil-and-gas than the neighboring eurozone, given its higher reliance on Alpine hydroelectricity and nuclear energy.

From The Wall Street Journal • Jun. 4, 2026

The global artificial intelligence buildout, with its insatiable appetite for reliable baseload electricity to power data centers, is accelerating that interest in nuclear energy further.

From Salon • May 21, 2026

It added that "the targeting of peaceful nuclear energy facilities is a flagrant violation of international law, the UN charter, and the principles of humanitarian law".

From BBC • May 17, 2026

But Dad’s main interest was energy: thermal energy, nuclear energy, solar energy, electrical energy, and energy from the wind.

From "The Glass Castle" by Jeannette Walls