Young prostatic tractor

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• tractor — An instrument for exerting traction upon an organ or structure. [Mod. L. a drawer, see traction] Lowsley t. a slender curved instrument with flexible blades at its tip, which can be opened or closed by rotation at the proximal end of the t.; it… …   Medical dictionary

• Young — William John, 20th century Australian biochemist. See Harden Y. ester. Thomas, English physician and physicist, 1773–1829. See Y. modulus, Y. rule, Y. Helmholtz theory of color vision. Hugh H., U.S. urologist, 1870–1945. See Y. prostatic tractor …   Medical dictionary