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Noun
1. infraspinatus muscleAnatomy
Wikipedia definition
2. Infraspinatus muscleIn human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa. As one of the four muscles of the rotator cuff, the main function of the infraspinatus is to externally rotate the arm and stabilize the shoulder joint.
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