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lituus |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Lituus \Lit"u*us\, n.; pl {Litui}. [L.] 1. (Rom. Antig.) a A curved staff used by the augurs in quartering the heavens. b An instrument of martial music; a kind of trumpet of a somewhat curved form and shrill note. 2. (Math.) A spiral whose polar equation is r^{2}[theta] = a; that is a curve the square of whose radius vector varies inversely as the angle which the radius vector makes with a given line