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rotator cuff

noun
1.
a bandlike structure encircling and supporting the shoulder joint, formed by four muscles attached to and merging with the joint capsule.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for rotator-cuff

rotator cuff

noun
1.
(anatomy) the structure around the shoulder joint consisting of the capsule of the joint along with the tendons of the adjacent muscles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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rotator-cuff in Medicine

rotator cuff n.
A set of muscles and tendons that secures the arm to the shoulder joint and permits rotation of the arm. Also called musculotendinous cuff.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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rotator-cuff in Science
rotator cuff
  (rō'tā'tər)   
A group of muscles and tendons attaching the shoulder to the scapula (shoulder blade) that provide stability to the shoulder joint and act to rotate the arm. Injuries to the rotator cuff often happen when the arm is repeatedly moved over the head with great force, as when pitching a baseball.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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