Definition of “fission” - English Dictionary

british dictionary

“fission” in British English

See all translations

fissionnoun [ U ]

uk /ˈfɪʃ.ən/ us /ˈfɪʃ.ən/

(Definition of “fission” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“fission” in American English

See all translations

fissionnoun [ U ]

us /ˈfɪʃ·ən, ˈfɪʒ-/

physics the dividing of the nucleus of an atom, producing energy

biology Fission is also the division of a living cell during reproduction in some very small organisms

(Definition of “fission” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“fission” in Business English

See all translations

fissionnoun [ U ]

uk /ˈfɪʃən/ us 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)