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Words related to foci

fo·ci
F f

  • bifocal

    having two different focuses

  • confocal

    having a common focus or common foci

  • conjugate axis

    the axis of a hyperbola perpendicular to the transverse axis at a point equidistant from the foci.

  • ellipse

    A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points (the foci) is constant, or resulting when a cone is cut by an oblique plane that does not intersect the base.

  • focus

    a central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts.

  • major axis

    the axis of an ellipse that passes through the two foci.
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