Lithotripsy :: Lithotripsy (n.) The operation of crushing a stone in the bladder with an instrument called lithotriptor or lithotrite; lithotrity.
Ripsaw :: Ripsaw (v. t.) A handsaw with coarse teeth which have but a slight set, used for cutting wood in the direction of the fiber; -- called also ripping saw..
Thrips :: Thrips (n.) Any one of numerous small species of Thysanoptera, especially those which attack useful plants, as the grain thrips (Thrips cerealium)..