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Definitions

fission

[fish-uhn] / ˈfɪʃ ən /


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.

Next, Nasa wants to build nuclear and solar power facilities on the Moon, including fission reactors.

From BBC • May 26, 2026

Existing U.S. nuclear plants, which provide an estimated 18% of the country’s electricity, rely on fission, which splits atoms.

From MarketWatch • May 18, 2026

"We therefore needed an energy acceptor that selectively captures the multiplied triplet excitons after fission."

From Science Daily • Mar. 28, 2026

Conventional nuclear plants split heavy atoms in a process called fission.

From The Wall Street Journal • Mar. 28, 2026

As sources of electricity go, nuclear fission is incredibly efficient.

From "Meltdown" by Deirdre Langeland




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