noun
also lith·o·trip·tor -ˌtriptər
( -s )
Etymology: alteration of lithontriptor , from lithontriptic breaking up bladder stones, modification (influenced by Greek triptos rubbed, pounded, verbal of tribein to rub) of Greek ( pharmaka tōn ) lithōn thryptika (drugs) capable of pulverizing stones
: a device for performing lithotripsy ; especially : a noninvasive device that pulverizes stones by focusing shock waves on a patient immersed in a water bath