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Definition of trapezoid:

  1. A bone of the carpus at the base of the second metacarpal, or index finger.
  2. A plane four- sided figure, having two sides parallel to each other.
  3. Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle.
  4. Of or pertaining to the trapezoid ligament; as, the trapezoid line.


Os Trapezoideum, trapezoid bone.

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