柯林斯詞典trapezium /tr??pi?z??m/ 1. N a quadrilateral having two parallel sides of unequal length 梯形 (Usual US and Canadian name trapezoid)[英國(guó)英語(yǔ)] 返回 trapezium劍橋詞典 trapezium noun [C] (SHAPE) mathematics UK a flat shape with four sides , where two of the sides are parallel 梯形 同義詞trapezoid (SHAPE) mathematics US a flat shape with four sides , where no sides are parallel 不槼則四邊形 同義詞trapezoid (SHAPE) trapezium noun [C] (BONE) anatomy a bone in the wrist at the base of the thumb 大多角骨 返回 trapezium