an abnormal stone, or concretion, composed primarily of oxalates and phosphates, found in the kidney.
Origin of kidney stone
First recorded in 1970–75
Also called renal calculus.
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A small hard mass in the kidney that forms from deposits chiefly of phosphates and urates.nephrolith
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.