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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.

Unlike fission, nuclear fusion generates “no long-lived radioactive waste,” Bechtel says, and unlike fossil fuels, it doesn’t involve burning finite resources and creating carbon emissions.

From The Wall Street Journal • Apr. 6, 2026

The findings could also encourage further research combining singlet fission and metal complexes, with potential uses not only in solar energy but also in LEDs and emerging quantum technologies.

From Science Daily • Mar. 28, 2026

Today, all nuclear plants are powered by fission, the process of splitting the atom.

From Barron's • Jan. 23, 2026

It is produced by nuclear fission for use in medical gauges and devices, but can also be a byproduct of nuclear reactors and weapons testing, the agency said.

From Los Angeles Times • Aug. 19, 2025

When neutrons fly away from one fuel rod, the surrounding water slows them to the optimal speed before they reach the next uranium nuclei, making them more likely to create fission.

From "Meltdown" by Deirdre Langeland




Vocabulary lists containing fission