1. (a.) Alt. of Catenarian.

2. (n.) The curve formed by a rope or chain of uniform density and perfect flexibility, hanging freely between two points of suspension, not in the same vertical line.

arc bow cadence catacaustic caustic circle conchoid crook curl curve decline decurrence diacaustic droop ellipse festoon hook hyperbola lapse lituus lowering parabola sag sinkage sinus slump submergence subsidence swag tracery