Breadcrumb Home > Dictionary > Index R rotator: Meaning and Definition of Find definitions for: ro•ta•tor Pronunciation: (rō'tā-tur or, esp. Brit, rō-tā'-), [key] — pl. ro•ta•tors ro•ta•tor•es a person or thing that rotates. a muscle serving to rotate a part of the body. 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. rotative rotator cuff TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: ennui Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language