latus rectum

English

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for latus rectum in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)

Etymology

Latin latus (“side”) + rectum (“right”)

Noun

latus rectum (plural latera recta or latus rectums)

  1. (geometry) The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis.
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