I think you are looking for Deltoid but there are more muscles than just the deltoid that can move the arm at the shoulder joint (such as teres major/minor, latissimus dorsi, pectoralis major, subscapularis, supraspinatus, infraspinatus just to name a few)
The scientific name for the shoulder muscle is the deltoid muscle.
The deltoid muscle is located around the shoulder at the top. There is a deltoid muscle that is located on each shoulder.
which shoulder muscle allows you to adduct your arm
Yes, the shoulder press machine is effective for building shoulder strength and muscle. It targets the deltoid muscles in the shoulders and can help improve overall shoulder stability and muscle development.
the shoulder muscle extends the arm
The shoulder muscle that is considered the strongest supinator is the biceps brachii.
The trapezius muscle is a superficial muscle of the neck and upper back that acts at the shoulder. It is responsible for movements like shoulder shrugging, scapular elevation, depression, retraction, and rotation.
The Deltoid muscle .
The Neck Muscle
The latissimus dorsi muscle is responsible for adducting the shoulder and causing extension of the shoulder joint. It is a large triangular muscle located in the back that helps with various movements of the shoulder and arm.
The deltoid muscle is the big muscle on the shoulder. It has three parts; the front or anterior, middle and back or posterior. It involves the shoulder joint.
The word sought may be "deleted" (erased, removed). The similar word is "delta" (triangular shape) for which the "deltoid" (shoulder muscle) is named.