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nuclear energy

American  
[noo-klee-er en-er-jee, nyoo-] / ˈnu kli ər ˈɛn ər dʒi, ˈnyu- /

noun

  1. energy released by reactions within atomic nuclei, as in nuclear fission or fusion.


nuclear energy British  

noun

  1. Also called: atomic energy.  energy released during a nuclear reaction as a result of fission or fusion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

nuclear energy Scientific  
  1. 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.

  2. Also called atomic energy

  3. Electricity generated by a nuclear reactor.


nuclear energy Cultural  
  1. Energy obtained from nuclear reactions.


Pronunciation

See nuclear ( def. ).

Etymology

Origin of nuclear energy

First recorded in 1925–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The agreement, unveiled earlier this month, allows Meta to prepay for nuclear energy that will power its data centers in the region.

From Barron's

Global momentum is building around nuclear energy, with the International Atomic Energy Agency estimating that the world's nuclear power capacity could more than double by 2050.

From BBC

While nuclear energy holds much promise for solving energy needs, Landek anticipates that the technology could lead to more controversy once it arrives.

From MarketWatch

These clean sources include renewables – such as solar and wind – and nuclear energy.

From BBC

Because Constellation is unregulated and selling into the wholesale market, the credit guarantees rates that the company gets for nuclear energy, and it has “significantly derisked their business,” according to Sallee.

From MarketWatch