li·thot·o·my (l?-th?t??-m?)n. pl. li·thot·o·mies Surgical removal of a stone or stones from the urinary tract.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.lithotomy (l????t?m?) n, pl -mies (Surgery) the surgical removal of a calculus, esp one in the urinary bladder[C18: via Late Latin from Greek, from litho- + -tomy] lithotomic, ?litho?tomical adj li?thotomist nCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014li?thot?o?my (l????t ? mi) n., pl. -mies. surgery to remove one or more stones from an organ or duct. [1715?25;