| 单词 | trapezoid |
| 释义 | trapezoid (once / 58803 pages) 1n 2n In geometry a trapezoid is a four-sided figure with two sides that are parallel. Imagine taking an equilateral triangle and chopping its tip off so that it's made up of two parallel lines on top and bottom and you've got a trapezoid. The word trapezoid comes from the Greek trapeza meaning "table" and -oeides meaning "shaped." Think of a trapezoid as table-shaped. It has a pair of parallel sides that are also known as the bases of the figure. To find the area of a trapezoid, take the average of the bases and multiply it by the height. In anatomy, the trapezoid is the smallest of the eight small bones in the wrist. WORD FAMILYtrapezoid: trapezoidal, trapezoids USAGE EXAMPLESIf most pop tunes are rectangles, he added, “Burt’s got some trapezoids.” Los Angeles Times(Nov 04, 2016) This trapezoid shape made by the six performers’ two parallel lines creates the framework to which the dancers often return. New York Times(Oct 19, 2016) Each island has four of these structures forming a trapezoid shape. BBC(Aug 10, 2016) 1 n a quadrilateral with two parallel sides 2Hyper quadrangle, quadrilateral, tetragon a four-sided polygon n the wrist bone between the trapezium and the capitate bones Syn|Hyper os trapezoideum, trapezoid bone carpal, carpal bone, wrist bone any of the eight small bones of the wrist of primates |
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