nuclear fusion

[noo-klee-er fyoo-zhuhn, nyoo-] / ˈnu kli ər ˈfju ʒən, ˈnju- /

NOUN

atomic fusion

Synonyms

WEAK

cold fusion fusion fusion reaction laser-induced fusion thermonuclear fusion thermonuclear reaction

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.

Massive stars produce light and heat through nuclear fusion, a process that releases enormous amounts of energy from their cores.

From Science Daily • Jun. 14, 2026

Actual power from nuclear fusion “has seemingly always been 10 to 20 years away,” Levin said.

From MarketWatch • May 18, 2026

She previously covered big oil and gas companies and reported on low-carbon technologies, such as green hydrogen and nuclear fusion.

From The Wall Street Journal • May 13, 2026

Being accused of attempting the impossible is not unusual for the scientists and engineers working on nuclear fusion projects around the world.

From BBC • Apr. 20, 2026

Luckily for us, stars don’t collapse because there is another force at work: nuclear fusion.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife