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English definition of “fissile”

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fissile

adjective uk   /ˈfɪs.aɪl/ us    /-əl/
specialized geology (of rock) able to be divided easily into pieces: Because of its layered structure, mica is fissile. specialized physics (of atoms) able to produce nuclear fission: An amount of fissile material was missing as a result of the accident.
(Definition of fissile from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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