latus rectum

(redirected from Semilatus rectum)
Also found in: Dictionary.

latus rectum

[¦lad·əs ′rek·təm]
(mathematics)
The length of a chord through the focus and perpendicular to the axis of symmetry in a conic section.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.