Definition of “fissile” - English Dictionary

british dictionary

“fissile” in British English

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fissileadjective

uk /ˈfɪs.aɪl/ us /ˈfɪs.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 Learner's Dictionary & Thesaurus © Cambridge University Press)