Dictionary.com
Thesaurus.com

nephrotomy

American  
[nuh-frot-uh-mee] / nəˈfrɒt ə mi /

noun

Surgery.

plural

nephrotomies
  1. incision into the kidney, as for the removal of a calculus.


nephrotomy British  
/ nɪˈfrɒtəmɪ /

noun

  1. surgical incision into a kidney

"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

Etymology

Origin of nephrotomy

From the New Latin word nephrotomia, dating back to 1690–1700. See nephro-, -tomy