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|Look up fission in Wiktionary, the free dictionary.|
Fission is a splitting of something into two or more parts.
Fission may refer to:
- Fission (biology), the subdivision of a cell or multi-cellular body into one or more parts and the regeneration of each part into a complete individual.
- Nuclear fission, where a large atomic nucleus (such as that of uranium) is split into two (or sometimes more) smaller nuclei.
- Another name for secession, the process whereby a nation-state divides into multiple states.
- Fission (band), a Swedish death-metal band.
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