a device used for fragmenting kidney stones with ultrasound waves.

1815–25; respelling, with -er1, of litho(n)triptor instrument for crushing kidney stones, pseudo- L derivative (cf. captor, raptor) of litho(n)triptic, ultimately based on the Greek phrase (phármaka tôn en nephroîs) líthōn thryptiká (drugs) breaking up stones (in the kidneys); trip- by association with Greek trī́bein to rub, knead, pound (verbal adjective trīptós) Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
lithotripter (ˈlɪθəˌtrɪptə)
a machine that pulverizes kidney stones by ultrasound as an alternative to their surgical removal

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

lithotripter lith·o·trip·ter (lĭth'ə-trĭp'tər)
A device that pulverizes kidney stones by passing shock waves through a water-filled tub in which the patient sits. The procedure creates stone fragments small enough to be expelled in the urine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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