nǎo
brain
Depicts rivers (巛) in the head (囟).
巛 Iconic component
chuān
river
囟 Iconic component
xìn
fontanel
Depicts a head.
𡿺
Meaning component in 1 character (1 verified)
腦
Sound component in 2 characters (2 verified)
腦 惱
Unicode
CC-CEDICT
季旭昇《說文新證》p.646-647
