<procedure> Incision into the kidney for the removal of a renal calculus. ... Origin: nephro-+ G. Lithos, stone, + tome, incision ... (05 Mar 2000) ... 
(nef″ro-lĭ-thot´ә-me) incision of a kidney for removal of kidney stones.
the surgical removal of a stone from the kidney by an incision into the kidney substance. It is normally performed with an incision into the renal pelvis.
Type: Term Pronunciation: nef′rō-li-thot′ŏ-mē Definitions: 1. Incision into the kidney for the removal of a renal calculus.
surgical removal of a kidney stone 
incision or opening of a kidney pelvis for removal of a calculus.