Thoracodorsal is a medical term that refers to a specific muscle in the back, namely the latissimus dorsi muscle. One synonym for this muscle is the "wing muscle," as it is responsible for the extension and adduction of the arm, giving it the appearance of wings. Another synonym is the "lats," as this muscle is essential for movements such as pull-ups, rows, and push-ups. The thoracodorsal muscle is also sometimes referred to as the "pullover muscle" because it is used in exercises such as the lat pullover. Additionally, some medical professionals may simply use the term "dorsal" or "back muscle" to refer to this specific area of the body.