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renal calculus

renal calculus

6.8
A hard stone that forms in the kidney can block the flow of urine
  • noun
  • /ˈrɛnəl ˈkælkjələs/
  • Specialized
translation icon : cálculo renal
  • After experiencing intense discomfort, she learned that a renal calculus was blocking her urinary tract.

Examples

  • The doctor explained that a renal calculus had formed in the patient's kidney, causing severe pain.

  • Other findings on follow-up included one child with intussusception, one death which was sudden and unexplained, and one child with renal calculi.

    Academic text (1991)
  • I also looked forward to telling Gus, who had himself suffered from the fabled renal calculi.

    Fiction book (2002)
  • Radiography showed bilateral nephrocalcinosis and a right renal calculus.

    Academic text (1996)
  • The index patient subsequently underwent right nephrotomies and ureterotomies for renal calculi and a left nephrectomy because of pyonephrosis.

    Academic text (1996)
  • Pei Zhong has made outstanding contributions to the improvement and innovation of shock wave lithotripsy technology and for the characterization of the mechanical properties of renal calculi.

    Academic text (2011)
  • He was relieved to find out that the renal calculus detected in his CT scan was small and could be managed with medication.

Synonyms

kidney stone
vsrenal calculus
18 3.7

A hard mass that forms in the kidney and often causes pain when you pee

focuses on mineral composition and location rather than symptoms
nephrolith
vsrenal calculus
  • Specialized
9.5

A hard stone that forms in the kidney

is the same meaning but uses a different word form
urinary calculus
vsrenal calculus
  • Specialized
7.2

A hard stone that forms in the kidney and can block urine

is specific to stones forming only inside the kidney
urolith
vsrenal calculus
  • Specialized
9.9

A hard stone that forms in the bladder or tubes that carry urine

refers only to stones formed inside the kidney
calculus
vsrenal calculus
  • Specialized
9.6

A hard lump of mineral that forms in organs like the kidney or gallbladder

applies only to stones that form inside the kidney

Surface Forms

renal calculus singular
renal calculi plural

Morphology

renal + calculus

The phrase is compositionally built from 'renal' (kidney-related) and 'calculus' (a concretion or stone), so its meaning 'stone in the kidney' is directly derivable from the constituents. It is a formal medical term (equivalent to 'kidney stone'), but given the medical senses of both words a B1 learner who knows them would understand the MWE.

Etymology

Renal calculus comes from a simple image: renal means 'of the kidney' and calculus means 'small stone'. So the name literally pictures a 'small stone' in the kidney, which is why it means a hard mass there that can cause pain or block urine.