How is circumduction best defined?

Circumduction is best defined as movement in a full circular rotation. This type of joint movement allows the distal end of a limb to move in a circular path while the proximal end remains relatively fixed. It typically occurs at the shoulders and hips, enabling circular movements such as swinging the arm in a windmill motion or the leg in a circular manner while the base point of the limb stays stable.

The concept of circumduction involves a combination of flexion, extension, abduction, and adduction, creating a cone-like movement pattern where the endpoint traces a circular path. This definition captures the essence of what happens during circumduction, distinguishing it from linear movements or those that only move towards or away from the body. Thus, the definition of circumduction as movement in a full circular rotation accurately conveys the nature of this motion.