nuclear fission

noun

physics
: a process in which the nucleus of a heavy atom is split apart

Examples of nuclear fission in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Curio also applies electric currents to separate metallic elements such as uranium and plutonium, taking advantage of the fact that virtually all nuclear fission products are metals, or behave like metals. John Koetsier, Forbes.com, 28 Aug. 2025 That leaves nuclear fission and radioisotope power as the only viable options for deep-space missions. IEEE Spectrum, 25 Aug. 2025 Nuclear fusion, which powers the sun, is more powerful than nuclear fission and creates less dangerous radioactive waste. Aman Tripathi, Interesting Engineering, 20 Aug. 2025 Control rods are used to control the speed of the reactions that generate nuclear fission, and in turn nuclear energy. Arpan Lobo, Freep.com, 26 July 2025 See All Example Sentences for nuclear fission

Browse Nearby Words

Cite this Entry

“Nuclear fission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nuclear%20fission. Accessed 10 Sep. 2025.

Medical Definition

nuclear fission

noun
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!