柯林斯詞典trapezoid /?tr?p??z??d/ 1. N a quadrilateral having neither pair of sides parallel 不等邊四邊形 返回 trapezoid劍橋詞典 trapezoid noun [C] (SHAPE) mathematics UK a flat shape with four sides , none of which are parallel 不槼則四邊形 同義詞trapezium (SHAPE) mathematics US a flat shape with four sides , where two of the sides are parallel 梯形 同義詞trapezium (SHAPE) trapezoid noun [C] (BONE) anatomy a small bone in the wrist at the base of the index finger (= the finger next to the thumb ) 小多角骨 返回 trapezoid