Definition of fissionable in English:

fissionable

adjective

  • ‘the fissionable material with which to construct nuclear weapons’
    another term for fissile
    • ‘Critical mass is the minimum mass of fissionable material required to sustain a nuclear fission reaction.’
    • ‘Acquisition of fissionable materials is a substantial technical prerequisite for the manufacture of nuclear explosive devices.’
    • ‘The fact remains that many, if not most, countries can't be trusted with the technology, if only because of carelessness with fissionable materials or nuclear waste.’
    • ‘Why is uranium fissionable and not, say, aluminum?’
    • ‘If we use more nuclear power (either because we are forced to, or in pursuit of lower CO2 emissions), we could do this for about 100 years using current nuclear reactors, before fissionable uranium runs out.’

Pronunciation

fissionable

/ˈfɪʃ(ə)nəb(ə)l/