lithotomy🔊nounEtymology From litho- + -tomy.1Medicine, Sciences, Surgery A surgical method for removal of calculi, such as kidney stones and gallstones.SynonymslithectomyDerived termscholedocholithotomy, cholelithotomy, cystolithotomy, lithotomist, nephrolithotomy, pyelolithotomy, ureterolithotomy