硬口蓋 こうこうがい Meanings Noun hard palate Kanji 硬 hard. Read as コウ. 口 mouth. Read as コウ. 蓋 lid. Read as ガイ. Words containing 硬口蓋 硬口蓋音 (こうこうがいおん) palatal Word lists Anatomy Jinuma: Japanese Dictionary · Word lists