Biliary calculus

gallstone.
an abnormal stonelike m-ss, usually of cholesterol, formed in the gallbladder or bile p-ssages.
historical examples

psychotherapy james j. walsh

noun
(pathol) a small hard concretion of cholesterol, bile pigments, and lime salts, formed in the gall bladder or its ducts also called bilestone
n.
gallstone
(gôl’stōn’)
a small, hard, abnormal m-ss composed chiefly of cholesterol, calcium salts, and bile pigments, formed in the gallbladder or in a bile duct. the presence of gallstones can lead to painful obstruction or infection and is sometimes treated with cholecystectomy.