trapezoid
noun [ C ] specialized uk/ˈtræp.ɪ.zɔɪd/ us/ˈtræp.ɪ.zɔɪd/
(SHAPE)
mathematics UK不规则四边形
a flat shape with four sides, none of which are parallel
Synonym: trapezium (SHAPE)
mathematics US梯形
a flat shape with four sides, where two of the sides are parallel
Synonym: trapezium (SHAPE)
(BONE)
anatomy 小多角骨
a small bone in the wrist at the base of the index finger (= the finger next to the thumb)