Which term describes turning the ankle so the plantar surface faces laterally?

The concept of eversion specifically refers to the movement of the ankle where the sole of the foot rotates away from the midline of the body, resulting in the plantar surface facing laterally. This movement allows the foot to pivot outward, increasing the lateral exposure of the foot's underside.

In contrast, inversion would involve the sole facing medially, toward the other foot. Adduction and abduction are terms that relate to movements in different planes; adduction is the movement toward the midline, while abduction is moving away from the midline, typically concerning limbs. In the context of the ankle, eversion is the correct term to describe the plantar surface facing laterally.