Meaning & use
nuclear energy
Energy released by splitting or combining atomic nuclei, used to generate electricity or in weapons.
See it in a sentence
The country plans to expand nuclear energy to reduce its dependence on coal.
Nuclear energy currently supplies about a fifth of the nation's electricity.
A note on using this word
Most nuclear power plants use fission, splitting atoms, while fusion, which combines them, remains largely experimental for generating power.
Words with a similar meaning
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