Pronunciation: (lit'yOO-us), [key]
—pl. lit•u•iPronunciation: (lit'yOO-ī"). [key]
1. Geom.a polar curve generated by the locus of a point moving so that the square of its radius vector varies inversely as the angle the radius vector makes with the polar axis. Equation: θr 2 = a.
2. (in ancient Rome) a crook-shaped staff used by augurs for divination.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.