kidney stone

kidney stone


medical : a hard object like a small stone that sometimes forms in a kidney and that can cause great pain

Full Definition of KIDNEY STONE

:  a calculus (as of calcium salts) in the kidney

First Known Use of KIDNEY STONE


kidney stone

noun    (Medical Dictionary)

Medical Definition of KIDNEY STONE

: a calculus in the kidney—called also renal calculus

kidney stone

noun    (Concise Encyclopedia)

Mass of minerals and organic matter that may form in a kidney. Urine contains many salts in solution, and low fluid volume or high mineral concentration can cause these salts to precipitate and grow, forming stones. Large stones can block urine flow, be a focus for infection, or cause renal colic (painful spasms). They can obstruct the urinary system at various points. Treatment deals with any underlying problem (e.g., infection or obstruction), tries to dissolve stones with drugs or ultrasound (lithotripsy), or removes large ones surgically.

Variants of KIDNEY STONE

kidney stone or renal calculus


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