V2EX trapezium

Trapezium

释义 Definition

trapezium(名词)
1)(几何)梯形:一种四边形,有且仅有一组对边平行(这是英式英语中最常见的用法)。
注:在美式英语中,“trapezium”有时指“没有平行边的四边形”,而“trapezoid”更常用来指“英式梯形”。
2)(解剖)大多角骨/斜方骨:手腕(腕骨)中的一块骨头,位于拇指根部附近。

发音 Pronunciation

/trpizim/

例句 Examples

A trapezium has one pair of parallel sides.
梯形有一组对边平行。

In the diagram, the trapezium is divided into two triangles to calculate its area more easily.
在图中,把这个梯形分成两个三角形可以更容易计算它的面积。

词源 Etymology

来自拉丁语 trapezium,源头可追溯到希腊语 trapezion(“小桌子”之意),与 trapeza(桌子)相关;因这种图形外观有点像桌面而得名。后来该词也被借用于解剖学,指因形状相似而命名的腕骨。

相关词 Related Words

文学与名著用例 Literary Works

  • Euclid Elements(《几何原本》多种英文译本中常用 trapezium 指某类四边形)
  • Charles H. Hutton A Course of Mathematics(经典数学教材中常出现 trapezium 用于平面几何与面积计算语境)
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