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  1. Oxford Dictionary

    vertex

    • IPA[ˈvəːtɛks]

    英式

    • n.
      the highest point; the top or apex.；the crown of the head.

    • noun: vertex, plural noun: vertices

    • 釋義

    名詞

    • 1. the highest point; the top or apex.
    • ▪ the crown of the head.
    • 2. each angular point of a polygon, polyhedron, or other figure.
    • ▪ a meeting point of two lines that form an angle.
    • ▪ the point at which an axis meets a curve or surface.