uranium 238 meaning

UK US

uranium 238 (noun): the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239.

Definition of uranium 238

  1. the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239

    Type of: uranium

More about uranium 238 on Wikipedia.