'Renal calculus' definitions:

Definition of 'renal calculus'

From: WordNet
noun
A calculus formed in the kidney [syn: kidney stone, urinary calculus, nephrolith, renal calculus]

Definition of 'Renal calculus'

From: GCIDE
  • Renal calculus \Renal calculus\ (Med.), an abnormal concretion formed in the excretory passages of the kidney, composed primarily of calcium oxalates and phosphates; -- also called kidney stone, nephrolith, and nephritic calculus (an obsolete term). [PJC]