(of an atom or element)able to undergo nuclear fission
(原子或元素)可(核)裂变的
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a fissile isotope .可裂变的同位素。
(chiefly of rock)easily split
(尤指岩石)易裂的,可裂的
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flat-bedded and very highly fissile shale .极易开裂的平层状页岩。
"mid 17th cent. (in the sense ‘easily split’): from Latin