sural Definition

of, relating to, or being a sural nerve or branches of the popliteal artery or vein that ramify in the area of the calf of the leg

any of several nerves in the region of the calf of the leg; especially : one formed by the union of a branch of the tibial nerve with a branch of the common peroneal nerve that supplies branches to the skin of the back of the leg and sends a continuation to the little toe by way of the lateral side of the foot