Pronunciation: (rō'tā-tur or, esp. Brit, rō-tā'-), [key]
—pl. ro•ta•tors for 1, 3, ro•ta•tor•esPronunciation: (rō"tu-tôr'ēz, -tōr'-) [key] for 2.
1. a person or thing that rotates.
2. Anat.a muscle serving to rotate a part of the body.
3. Naut.a bladed device streamed to rotate in the water to actuate a patent log.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.