Nuclear-energy definition

The energy released by a nuclear reaction, especially by fission or fusion.
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The energy released from an atom in nuclear reactions or by radioactive decay; esp., the energy released in nuclear fission or nuclear fusion.
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The energy released by the nucleus of an atom as the result of nuclear fission, nuclear fusion, or radioactive decay. The amount of energy released by the nuclear fission of a given mass of uranium is about 2,500,000 times greater than that released by the combustion of an equal mass of carbon. And the amount of energy released by the nuclear fusion of a given mass of deuterium is about 400 times greater that that released by the nuclear fission of an equal mass of uranium.
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Nuclear energy is a source of power which is created from energy released by a nuclear reaction.

An example of nuclear energy is the electricity generated by a nuclear reactor, which is the major power source used in Japan.

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Electricity generated by a nuclear reactor.
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Nuclear energy regarded as a source of power.
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(physics) The energy released by a nuclear reaction; either through nuclear fission or nuclear fusion.
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Such energy used as a power source.
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