Meanings
nounspontaneous fission (uncountable)
- uncountablenuclear physicsA form of radioactive decay: nuclear fission that occurs spontaneously, instead of being induced by an external stimulus.
Synonyms & antonyms
Opposite
Cite this entry
APA
spontaneous fission. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/spontaneous%20fission
MLA
“spontaneous fission.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/spontaneous%20fission. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “spontaneous fission,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/spontaneous%20fission.
Source: spontaneous fission on Wiktionary, CC BY-SA 4.0.