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trapezium

英 [trə'piːzɪəm] 美[træ'pizɪəm]
  • n. (英)[数] 梯形(等于trapezoid);(美)[数] 不规则四边形;大多角骨

英英释意


1. a quadrilateral with no parallel sides
2. the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals