rotator cuff(n = noun.body) - a supporting structure of the shoulder consisting of the muscles and tendons that attach the arm to the shoulder joint and enable the arm to move;
is a kind of anatomical structure, bodily structure, body structure, complex body part, structure
is a part of articulatio humeri, shoulder, shoulder joint
has parts: deltoid, deltoid muscle, musculus deltoideus

cuff, mousquetaire cuff, off the cuff, rotator, trouser cuff