rectum : Idioms & Phrases

Index

cyma recta

  • noun a cyma in which the upper section is concave and the lower section is convex
WordNet

Cyma recta, ∨ Cyma

  • a cyma, hollow in its upper part and swelling below.
Webster 1913

latus rectum

La"tus rec"tum
Etymology
L., the right side.
Definitions
  1. (Conic Sections) 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. See Focus, and Parameter.
Webster 1913