Definition of nuclear fission in English:

nuclear fission


  • A nuclear reaction in which a heavy nucleus splits spontaneously or on impact with another particle, with the release of energy.

    • ‘Their research provided the groundwork for other modern-day solutions that use microwave energy and light to propel ships, rather than nuclear fission.’
    • ‘It is irresponsible for scientists to suggest that the large tabulated total energy content of biomass, oil shale, oil sands, heavy oil, and nuclear fission can cover world energy demand for the longterm future.’
    • ‘The simple atom bomb owed its explosive power to the energy released by nuclear fission, or fusion.’
    • ‘Nuclear fusion reactions are like nuclear fission reactions, therefore, in the respect that some quantity of mass is transformed into energy.’
    • ‘And no one's going to be able to invent all the hydrogen-powered cars and nuclear fission energy we're supposed to have in the future.’
    • ‘And so this was the name that Meitner and Frisch gave to the phenomenon Strassmann and Hahn had observed: nuclear fission.’
    • ‘NASA's Project Prometheus is making strategic investments in space nuclear fission power and electric propulsion technologies.’
    • ‘Health officials did not test for Strontium 90, a radioactive carcinogenic byproduct of nuclear fission.’
    • ‘Because it is a clean and renewable product, it threatened to impact upon the production of energy from coal, oil, gas and nuclear fission, all of which are not renewable and all are polluting.’
    • ‘Many nuclear reactors today are based on a nuclear fission reaction where a uranium atom absorbs a neutron and breaks into two smaller atoms and releases more neutrons, heat, and gamma radiation.’
    • ‘An atomic bomb is a weapon of mass destruction which uses nuclear fission to produce vast amounts of energy.’
    • ‘Well, we've got these different possible techniques - there's nuclear fusion, nuclear fission, solar power, tidal power and so on.’
    • ‘The wartime head of Germany's nuclear programme, Werner Heisenberg, reportedly ‘failed to understand a key aspect of nuclear fission chain reactions’.’
    • ‘After the outbreak of World War II, the United States mounted a massive project to develop an atomic bomb, the first weapon to use the recently discovered process of nuclear fission as an energy source.’
    • ‘Now when you were working with Bohr on the structure of the nucleus and in particular, the problem of nuclear fission, when did you first realise that a chain reaction might be a possibility?’
    • ‘The development of nuclear fission weapons and later thermonuclear fusion weapons represented an incomparable revolution in weaponry.’
    • ‘The element can be prepared artificially in particle accelerators and is a byproduct of nuclear fission reactions.’
    • ‘Even before the discovery of nuclear fission, theorists began thinking of an atomic nucleus as something more complicated than a bag of hard particles.’
    • ‘Before World War II, German chemists Otto Hahn and Fritz Strassmann discovered nuclear fission.’
    • ‘The products of uranium mining and nuclear fission remain radioactive for hundreds of thousands of years.’