urolith
/ˈjʊrəˌlɪθ/
noun
- A hard mass of minerals that forms in the urinary tract; a kidney stone or bladder stone.
- A diet high in calcium can sometimes lead to the formation of a urolith.
- The patient passed a small urolith after drinking plenty of water.
- Doctors used ultrasound to break up the urolith in his kidney.