[ley-tuh s rek-tuh m]
- the chord perpendicular to the principal axis and passing through a focus of an ellipse, parabola, or hyperbola.
Origin of latus rectum
1695–1705; < New Latin: literally, straight side
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- geometry a chord that passes through the focus of a conic and is perpendicular to the major axis
C18: New Latin: straight side