Pronunciation: (rō'tur), [key]
1. Elect.a rotating member of a machine. Cf. stator (def. 1).
2. Aeron.a system of rotating airfoils, as the horizontal ones of a helicopter or of the compressor of a jet engine.
3. any of a number of tall, cylindrical devices mounted on a special ship (ro'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.
4. (in a self-winding watch) a weight eccentrically mounted on an arbor for keeping the mainspring wound.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

rotogravurerotor blade
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