The collarbone, a long curved bone that connects the shoulder to the chest and serves as the only bony connection between the arm and the axial skeleton. It acts as a strut to keep the shoulder positioned away from the chest wall.
From Latin 'clavicula' meaning little key, diminutive of 'clavis' (key). The name comes from its resemblance to an ancient Roman key, with its distinctive S-shaped curve.
Try Another Word