nuclear fission


: 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 Nuclear energy Nuclear energy is produced by nuclear fission, when the nucleus of an atom splits apart into two smaller atoms and releases a boatload of energy. Kylie Martin, Detroit Free Press, 28 Mar. 2024 The parallels between nuclear fission and superintelligence were taken to be obvious: world-altering potential, existential risk, theoretical research thrust into the geopolitical spotlight. Andrew Marantz, The New Yorker, 11 Mar. 2024 Zaporizhzhia is different because the plant’s six Soviet-era reactors were put into semi-shutdown to stop the nuclear fission reaction and generation of heat and pressure shortly after the start of the war. Richard Engel, NBC News, 22 Feb. 2024 The first step went fine: To stop the nuclear fission chain reaction, control rods with neutron-absorbing properties were inserted among the fuel rods. IEEE Spectrum, 16 Mar. 2011 The extraction of energy from nuclear fission, by contrast, happened relatively quickly. Bayarbadrakh Baramsai, IEEE Spectrum, 27 Feb. 2022 This makes both solar and wind ill-suited to replace baseload power generation where a constant steady supply is needed; here nuclear fission is far more competitive as a low-CO2 alternative. Christiaan Hetzner, Fortune, 28 Nov. 2023 Today, the art of turning heat from burning gas, nuclear fission, Earth’s core, the sun, and other sources into useful energy underpins modern life. Sid Assawaworrarit, IEEE Spectrum, 25 Nov. 2023 Decarbonizing by mid-century will therefore depend on other technologies: renewables such as solar and wind; nuclear fission; and perhaps carbon-capture techniques. Philip Ball, Scientific American, 16 May 2023

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Cite this Entry

“Nuclear fission.” Dictionary, Merriam-Webster, Accessed 19 Apr. 2024.

Medical Definition

nuclear fission

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