rotator cuff muscle
nounUK /rəʊˈteɪtə kʌf ˈmʌsəl/
US /ˈroʊteɪtər kʌf ˈmʌsəl/
A small muscle in your shoulder that helps your arm move and stay in place.
The doctor said I stretched a rotator cuff muscle while throwing the ball.
OTHER MEANINGS
2. Any of the four muscles that form a covering around the shoulder joint.
The rotator cuff muscles include the supraspinatus and infraspinatus.
3. A group of muscles and tendons that keep the upper arm bone in its socket.
Physical therapy can strengthen the rotator cuff muscle group after an injury.
4. Informal shorthand for a rotator cuff injury or strain.
He missed the season because of a rotator cuff muscle problem.