noun
gallstone
Medical term for a stone formed in the gallbladder or bile duct. Also used in compounds like 胆石症 (cholelithiasis).
胆石が見つかって、手術を受けることになった。
They found a gallstone, and I ended up having surgery.
胆石は、コレステロールが固まってできることが多
Gallstones often form when cholesterol hardens.