硬口蓋 [－－盖]

Jyutping ngaang6 hau2 goi3
Pinyin yìng kǒu gài

Definitions (Wiktionary)
  1. noun
    Synonym of 硬顎／硬颚 (yìng'è, “hard palate”).
    (syn.) 硬顎, 硬颚