蛻齒 [蜕齿]

Jyutping teoi3 ci2
Pinyin tuì chǐ

Definitions (Wiktionary)
  1. verb, Hokkien, Quanzhou, Xiamen, of a child
    to grow permanent teeth to replace milk teeth
    (syn.) 換奶齒, 齠齒, 替牙, 齔, 換齒, 褪齒, 換牙齒, 換牙, 蛻齒