noun
cleft palate
Medical term for a congenital split in the roof of the mouth.
口蓋裂は手術で治療できる先天性の疾患です。
Cleft palate is a congenital condition that can be treated with surgery.
口唇裂 refers specifically to a cleft lip, while 口蓋裂 refers to a cleft palate.
Compound of 口蓋 (こうがい, 'palate') and 裂 (れつ, 'cleft, split').