vertex

vertex
[ˈvəːtɛks]
(pl. vertices -tɪsiːz vertexes)
  1. the highest point; the top or apex
    最高点;顶点
    ■(Anatomy)the crown of the head
    (剖)颅顶,头顶;头冠
  2. (Geometry)each angular point of a polygon, polyhedron, or other figure
    (几何)(多边形、多面体或其他图形的角的)顶点
    ■a meeting point of two lines that form an angle
    (两线相交成角时的)相交点
    ■the point at which an axis meets a curve or surface
    (轴与曲线或平面相交时的)点
语源
  1. late Middle English: from Latin, whirlpool, crown of a head, vertex', from vertere 'to turn'
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