nuclear fusion

American  

[noo-klee-er fyoo-zhuhn, nyoo-] / ˈnu kli ər ˈfyu ʒən, ˈnyu- /

noun

1. fusion.

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nuclear fusion British  

noun

1. Sometimes shortened to: fusion.  a reaction in which two nuclei combine to form a nucleus with the release of energy Compare nuclear fission See also thermonuclear reaction

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fusion, nuclear Cultural  

1. The combining of two small atomic nuclei to form a larger nucleus, sometimes with the release of energy. (Compare nuclear fission.)

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Pronunciation

See nuclear ( def. ).

Discover More

The use of fusion as a controllable energy source on Earth is still in its experimental stages.

The fusion of hydrogen into helium releases huge amounts of energy and is the main energy source of stars, including the sun.

Hydrogen bombs use the energy of fusion.

Etymology

Origin of nuclear fusion

First recorded in 1895–1900

Example Sentences

TAE—whose backers include Alphabet, Chevron and Goldman Sachs—is one of the oldest and most prominent companies working in the relatively nascent field of commercial nuclear fusion.

From The Wall Street Journal

DJT’s recent moves include the launch of five ETFs focused on defense and energy sectors, and a merger agreement with nuclear fusion company TAE Technologies.

From Barron's

Stars shine because nuclear fusion in their cores converts hydrogen into helium, creating outward pressure that counteracts gravity.

From Science Daily

These stars could be powered not only by nuclear fusion, but also by energy released when dark matter particles annihilate.

From Science Daily

Geothermal energy offers baseload power, while nuclear fusion, though promising, is considered at least 10 years from commercial viability.

From Barron's