fission

fission
[ˈfɪʃ(ə)n]
noun
  1. [mass noun]the action of dividing or splitting something into two or more parts
    分裂,开裂;裂变
    the party dissolved into fission and acrimony.
    该政党已支离破碎,干戈鼎沸。
    ■short for nuclear fission
    nuclear fission 的简称
    ■(Biology)reproduction by means of a cell or organism dividing into two or more new cells or organisms
    (生)(细胞或有机体的)分裂;裂殖
    bacteria divide by transverse binary fission.
    细菌以横向二分裂的方式繁殖。
verb
  1. [no obj.](chiefly of atoms) undergo fission
    (多指原子)裂变
    these heavy nuclei can also fission.
    这些重原子核也可裂变。
语源
  1. early 17th cent.: from Latin fissio(n-), from findere 'to split'
英语宝典
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