牙鉸 [－铰]

Jyutping ngaa4 gaau3
Pinyin yá jiǎo

Definitions (粵典–words.hk)
  1. 名詞
    連接頭​骨同​下​顎​嘅​關​節​（​量​詞​：​個​）
    jaw joint
  2. 參看
    牙骹

牙鉸 [－铰]

Jyutping ngaa4 gaau2
Pinyin yá jiǎo

Definitions (CC-CANTO)
  1. lower jaw/chatting