Noun trapezium has 3 senses
  1. trapezium - a quadrilateral with no parallel sides
    --1 is a kind of
    quadrilateral, quadrangle, tetragon
    Antonyms: parallelogram
  2. Trapezium, the Trapezium - a multiple star in the constellation of Orion
    --2 is a kind of multiple star
  3. trapezium, trapezium bone, os trapezium - the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
    --3 is a kind of carpal bone, carpal, wrist bone
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