Lituus

(n.) A curved staff used by the augurs in quartering the heavens.

(n.) An instrument of martial music; a kind of trumpet of a somewhat curved form and shrill note.

(n.) A spiral whose polar equation is r2/ = 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.

编辑:桑德拉