Correct
裂变
/ lièbiàn /
Strokes
Definition
fission
Example
As a Verb
fission
1
Zìfā
自发
lièbiàn
裂变
spontaneous fission
2
Hélièbiàn
核裂变
nuclear fission
3
Lièbiàn
裂变
cáiliào
材料
fissile material
As a Verb
split
4
Yī
一
gè
个
dàjiātíng
大家庭
lièbiàn
裂变
wéi
为
jǐ
几
ge
个
xiǎojiātíng
小家庭
an extended family split into several nuclear families