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  1. conic section

    英式

    • n.
      a figure formed by the intersection of a plane and a circular cone. Depending on the angle of the plane with respect to the cone, a conic section may be a circle, an ellipse, a parabola, or a hyperbola.
    • noun: conic section, plural noun: conic sections

    • 更多解釋
    • IPA[ˈkänik ˈsekSHən]

    美式

    • n.
      a figure formed by the intersection of a plane and a right circular cone. Depending on the ...

    Oxford American Dictionary