pons asinorum Hear it!

pons asinorum definition

pons· asi·no·rum (pänz′ as′i nō′rəm)

  1. Geom. the fifth proposition of the first book of Euclid (that the base angles of an isosceles triangle are equal)
  2. any problem hard for beginners

Etymology: ModL, lit., bridge of asses

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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