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trapezoid definition

trap·ezoid (trap′i zo̵id′)

noun

  1. a plane figure with four sides, only two of which are parallel
  2. Brit. trapezium (sense )
  3. Anat. a small bone of the wrist near the base of the index finger

Etymology: ModL trapezoides < Gr trapezoeides, shaped like a trapezoid: see trapezium & -oid

adjective

shaped like a trapezoid
also trapezoidal trap′·ezoi′·dal

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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