(noun) a quadrilateral with no parallel sides. Synonyms: trapezium.
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Noun Definition 1
(noun) a multiple star in the constellation of Orion. Synonyms: Trapezium.
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Noun Definition 2
(noun) the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals. Synonyms: trapezium, trapezium bone, os trapezium.