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English definition of “fission”

fission

noun [U]
 
 
/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 supporting energy efficiency, renewable energy, and nuclear fission.
(Definition of fission from the Cambridge Business English Dictionary © Cambridge University Press)
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