Dictionary
la•tus rec•tum
Pronunciation: (lā'tus rek'tum), [key]
—pl. la•ter•a rec•taPronunciation: (lā'tur-u rek'tu). [key]
Geom.
the chord perpendicular to the principal axis and passing through a focus of an ellipse, parabola, or hyperbola.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.