word
Nuclear Fission
NYOO-klee-er FISH-un
/ˈnjuːkliər ˈfɪʃən/Listen
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Syllable breakdown
nuclearfission
Dictionary meaning
Splitting of a heavy atomic nucleus releasing enormous energy — uranium-235 and plutonium-239 are fissile materials; the Manhattan Project harnessed fission for weapons; nuclear power plants control fission for electricity; one kilogram of uranium fuel equals ~3 million kg of coal; waste storage and weapons proliferation are major concerns
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