"trapeziums" in the noun sense
1. trapezium
a quadrilateral with no parallel sides
2. Trapezium
a multiple star in the constellation of Orion
3. trapezium, trapezium bone, os trapezium
the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
Source: WordNet® (An amazing lexical database of English)
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