fission
fi
ˈfɪ
fi
ssion
ʃən
shēn
/fˈɪʃən/

Definition & Meaning of "fission"in English

Fission
01

(chemistry) the splitting of a heavy and unstable atomic nucleus into lighter parts

Examples
Nuclear fission was discovered in the late 1930s and provided insight into the enormous energy released during the splitting of uranium atoms.
02

(biology) the process where a single cell splits itself into two or more daughter cells

Examples
Yeast cells undergo fission to multiply rapidly through asexual budding and pinching division.
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