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gallstone
(gôl′stōn′)
noun
a small, solid mass formed in some gallbladders or bile ducts; biliary calculus: it is formed of cholesterol, or, occasionally, of calcium salts, and can obstruct the flow of bile, causing pain, jaundice, and other symptoms
See gallstone in American Heritage Dictionary 4
noun
A small, hard, pathological concretion, composed chiefly of cholesterol, calcium salts, and bile pigments, formed in the gallbladder or in a bile duct.
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