Final answer:
The movement of bone away from the midline of the body is known as abduction, which is different from adduction, the movement towards the midline.
Step-by-step explanation:
The movement of a bone away from the midline of the body is called abduction. This term is used to describe actions such as moving the arms or legs laterally, such as lifting them straight out to the side. In contrast, adduction refers to the movement of a bone toward the midline of the body. For example, bringing the arms down after they have been lifted to the side is an adduction move. These motions occur within the coronal plane and are common in ball-and-socket joints such as the shoulder and hip.