ㄏㄨㄢˋhuànㄧㄚˊ

  1. 乳齒逐一脫落恆齒替換現象一般歲時開始換牙歲時全部恆齒

to grow replacement teeth (zoology)​, to grow permanent teeth in place of milk teeth
remplacement des dents de lait
Milchzahn (S)​