kidney stone

noun Pathology.
an abnormal stone, or concretion, composed primarily of oxalates and phosphates, found in the kidney.
Also called renal calculus.


Origin:
1970–75

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
kidney stone
 
n
1.  pathol Also called: renal calculus a hard mass formed in the kidney, usually composed of oxalates, phosphates, and carbonates
2.  mineralogy another name for nephrite

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

kidney stone n.
A small hard mass in the kidney that forms from deposits chiefly of phosphates and urates. Also called nephrolith.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
kidney stone  
A calculus that originates in the kidney and is usually composed of calcium salts, uric acid, cystine, and other compounds. Kidney stones cause extreme pain and bleeding if they obstruct the passage of urine in the kidney or in the ureter. They can often be treated with lithotripsy .
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
One nurse suggested it might have been a kidney stone, a worthy suggestion.
The doctor mistakenly diagnosed a kidney stone, and gave him an antibiotic and
  painkillers.
Drinking plenty of fluids is important for preventing recurrence of any kidney
  stone.
People with larger body sizes may excrete more calcium and uric acid, which
  increase the risk of kidney stone formation.
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