Noun | 1. | ![]() great saphenous vein, long saphenous vein - the longest vein in the body; runs from foot to the groin where it joins the femoral vein short saphenous vein - a vein running from the foot up the back of the leg to the knee vein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood" leg - a human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle |