a noninvasive medical procedure in which ultrasound generated by a machine () pulverizes kidney stones or gallstones into small pieces that can be excreted
See lithotripsy in American Heritage Dictionary 4
(lĭthˈə-trĭpˌsē)
nounpl.lith·o·trip·sies
Pulverization of kidney stones or gallstones by means of a lithotripter.