transverse axis

noun Geometry.
  1. the axis of a hyperbola that passes through the two foci.
  2. the segment of such an axis included between the vertices of the hyperbola.

Origin of transverse axis

First recorded in 1695–1705
Also called transverse.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018