懂中文 Dong Chinese

齔

chèn

lose baby teeth and get adult teeth

Evolution

齔 Seal script Shuowen (~100 AD)

Seal script

Shuowen (~100 AD)
齔 Clerical script Eastern Han dynasty (25-220 AD)

Clerical script

Eastern Han dynasty (25-220 AD)
齔 Clerical script Cao Wei (Three Kingdoms: 222-280 AD)

Clerical script

Cao Wei (Three Kingdoms: 222-280 AD)
Definitions

龀 (齔) 

chèn

lose baby teeth and get adult teeth; to replace the milk teeth