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じはつかくぶんれつ
Meanings
Noun
1. spontaneous fission
Alt. forms
自
じ
発
はつ
核
かく
分
ぶん
裂
れつ
じはつかくぶんれつ
Composed of
じはつ
spontaneity; spontaneous passive
かくぶんれつ
nuclear fission; karyokinesis (division of a cell nucleus during mitosis or meiosis)