fission Definition in the Cambridge English Dictionary
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Definition of “fission” - English Dictionary

Definition of "fission" - American English Dictionary

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fissionnoun [U]

 us   /ˈfɪʃ·ən, ˈfɪʒ-/
physics the ​dividing of the nucleus of an ​atom, ​producingenergy biology Fission is also the ​division of a ​livingcell during ​reproduction in some very ​smallorganisms
(Definition of fission from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "fission" - British English Dictionary

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fissionnoun [U]

uk   us   /ˈfɪʃ.ən/
specialized physics the ​process of ​dividing the nucleus of an ​atom, ​resulting in the ​release of a ​largeamount of ​energy : nuclear fission specialized biology the ​division of a ​livingcell as ​part of reproduction: The fission of the ​cell could be ​inhibited with ​certainchemicals.
(Definition of fission from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "fission" - Business English Dictionary

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fissionnoun [U]

uk   us   /ˈfɪʃən/ ENVIRONMENT
a ​process in which the nucleus of an atom ​divides and ​releases a large ​amount of ​energy: atomic/nuclear fission Industrialized ​nations should ​increase their ​efforts in ​supportingenergyefficiency, ​renewableenergy, and ​nuclear fission.
(Definition of fission from the Cambridge Business English Dictionary © Cambridge University Press)
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