triangle

triangle
noun
  1. a plane figure with three straight sides and three angles
    三角形
    an equilateral triangle.
    等边三角形。
    ■a thing shaped like such a figure
    三角形物
    a small triangle of grass.
    一小块三角形草地。
    ■a situation involving three people or things, especially an emotional relationship involving a couple and a third person with whom one of them is involved
    (尤指情感上的)三角关系
    ■a musical instrument consisting of a steel rod bent into a triangle and sounded by being struck with a small steel rod
    三角铁(打击乐器)
    ■a frame used to position the pool balls in snooker and pool
    (摆放斯诺克和落袋台球撞球位置的)三角框
    ■(N. Amer.)a drawing instrument in the form of a right-angled triangle
    (北美)直角三角形三角板(绘图用具)
    ■(triangles)(historical)a frame of three halberds joined at the top to which a soldier was bound for flogging
    (史)(系缚士兵以鞭打的)三戟刑具
  2. a small brownish Eurasian moth of oak and beech woods
    小型欧亚紫刺蛾(呈棕色,见于橡木及山毛榉林)
  3. Heterogenea asella, family Limacodidae
    拉丁名Heterogenea asella,刺蛾科
语源
  1. late Middle English: from Old French triangle or Latin triangulum, neuter of triangulus 'three-cornered' (see tri-, angle)
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