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A kind of missile weapon consisting of one, two, or more balls of stone, iron, or other material, attached to the ends of a leather cord; -- used by the Gauchos of South America, and others, for hurling at and entangling an animal.

A very beautiful and hard wood, obtained in the West India Islands. It is used in cabinetmaking, for the handles of tools, and for various fancy articles.

A surface of the second order, which is cut by certain planes in hyperbolas; also, the solid, bounded in part by such a surface. Hyperboloid of revolution, an hyperboloid described by an hyperbola revolving about one of its axes. The surface has two separate sheets when the axis of revolution is the transverse axis, bu…

ubical parabola n = 3; for the semicubical parabola n = Cubical, and Semicubical. The parabolas have infinite branches, but no rectilineal asymptotes.

any surface of the second order whose sections by planes parallel to a given line are parabolas.