nuclear fission

noun

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

Examples of nuclear fission in a Sentence

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In nuclear fission, Uranium-235 is the critical fuel that sustains the reaction. Julian Hayes Ii, Forbes.com, 21 Jan. 2026 Unlike nuclear fission, which breaks a heavy element like uranium to release a large amount of energy, nuclear fusion fuses smaller, lighter elements like hydrogen into helium and releases energy. Ameya Paleja, Interesting Engineering, 20 Jan. 2026 This alone isn't enough for nuclear fission to sustain itself, but at Oklo, groundwater that flowed through these rocks acted as a natural neutron moderator – similarly to how water is used in many of today's reactors. New Atlas, 8 Jan. 2026 These nuclear fission reactors are less than a third of the size and power output of conventional reactors. IEEE Spectrum, 29 Dec. 2025 See All Example Sentences for nuclear fission

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“Nuclear fission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nuclear%20fission. Accessed 28 Jan. 2026.

Medical Definition

nuclear fission

noun
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