[{"Bold_text": "noun", "List Items": ["Electricity.a rotating member of a machine.Compare stator(def1) stator(def1).", "Aeronautics.a system of rotating airfoils, as the horizontal ones of a helicopter or of the compressor of a jet engine.", "any of a number of tall, cylindrical devices mounted on a special shipro?tor ship?and rotated in such a way that the Magnus effect of wind impinging on the cylinders is used to drive and maneuver the vessel.", "(in a self-winding watch) a weight eccentrically mounted on an arbor for keeping the mainspring wound."]}]