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fis·sion
 fission
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- pronunciation:
- fI
sh
 n
[or]
fI
zhn
- features:
- Word Combinations (noun), Word Explorer
| part of speech: |
noun |
| definition: |
the splitting of the nucleus of an atom into two or more nuclei. This makes more atoms of lighter elements and gives off large amounts of energy.
- antonyms:
- fusion
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| derivation: |
fissionable (adj.) |
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