WordValefission
splitting an atomic nucleus to release energy
In more detail
1. (noun) the splitting of an atom's nucleus, which releases a huge amount of energy
2. (noun) the division of a cell or organism into two or more parts to produce new cells or organisms
Examples
- 1. Nuclear fission is used to generate electricity in power plants.
- 2. Some bacteria reproduce by fission, splitting into identical copies.
How to use fission
Fission is a technical term used in nuclear physics and biology to describe the splitting or division of atomic nuclei or cells. In physics contexts, it typically refers to nuclear fission and the release of energy; in biology, it describes asexual reproduction. The term is precise and neutral in scientific discourse.
Common phrases
- nuclear fission
- cell fission
- fission reactor
- fission bomb
- spontaneous fission
- induced fission
Synonyms
splitting · division · cleavage · fragmentation
Opposites
fusion
Word family
fissile · fission (noun) · fissionable
A common mistake
Learners sometimes confuse fission with fusion; fission is splitting apart (releasing energy from heavy elements), while fusion is combining lighter elements (also releasing energy).
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