rotator

noun ro·ta·tor \ ˈrō-ˌtā-tər also rō-ˈtā- \
|Updated on: 13 Jun 2018

Definition of rotator

: one that rotates or causes rotation; especially plural rotators or rotatores play \ˌrō-tə-ˈtȯr-ˌēz\ : a muscle that partially rotates a part on its axis

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First Known Use of rotator

1659

in the meaning defined above

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Medical Dictionary

rotator

noun ro·ta·tor \ ˈrō-ˌtāt-ər also rō-ˈ \

medical Definition of rotator

plural rotators or rotatores play \ˌrōt-ə-ˈtōr-ēz\
: a muscle that partially rotates a part on its axis; specifically : any of several small muscles in the dorsal region of the spine arising from the upper and back part of a transverse process and inserted into the lamina of the vertebra above

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