rotator [roh-tey-ter or, esp. British, roh-tey-] Word Origin noun, plural ro·ta·tors for 1, 3, ro·ta·tor·es [roh-tuh-tawr-eez, -tohr-] /ˌroʊ təˈtɔr iz, -ˈtoʊr-/ for 2.

  1. a person or thing that rotates.
  2. Anatomy. a muscle serving to rotate a part of the body.
  3. Nautical. a bladed device streamed to rotate in the water to actuate a patent log.

Origin of rotator 1670–80; Latin rotātor, equivalent to rotā(re) (see rotate1) + -tor -tor Related Words for rotatores wheel, rotator British Dictionary definitions for rotatores rotator noun

  1. a person, device, or part that rotates or causes rotation
  2. anatomy any of various muscles that revolve a part on its axis

rotatores in Medicine rotator [rō′tā′tər] n.

  1. A muscle that serves to rotate a part of the body.
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