conjugate axis


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

  2. the segment of this axis equal to one side of a rectangle that has its other side equal to the transverse axis and diagonals that are along the asymptotes of the hyperbola.

Origin of conjugate axis

1
First recorded in 1875–80

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