The technique of crushing a stone in the bladder and washing out the fragments through a catheter. [litho- + G. lapaxis, an emptying out]
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n.
the operation of crushing a stone in the bladder, using an instrument called a lithotrite. The small fragments of stone can then be removed by irrigation and suction.
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li·thol·a·paxy (lĭ-tholґə-pak″se) lithotripsy.Medical dictionary. 2011.