[fish-uh-nuh-buh l] /ˈfɪʃ ə nə bəl/

adjective, Physics.
capable of or possessing a nucleus or nuclei capable of undergoing :
a fissionable nucleus; fissionable material.
capable of undergoing nuclear fission as a result of any process Compare fissile (sense 1)


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  • Fission-fusion bomb

    noun 1. another name for fusion bomb

  • Fission product

    noun 1. a nuclide produced either directly by nuclear fission or by the radioactive decay of such a nuclide fission product n. A usually radioactive isotope produced as a result of the fission of a massive atom such as U235.

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