What does Saphenous vein, small mean in medical term?

Saphenous vein, small means: Small Saphenous vein: This is the smaller of two saphenous veins. It runs up the legs at the surface.
(in Medical Dictionary)

What else does Saphenous vein, small mean?

Another saphenous vein is called the great or large saphenous. It runs from the feet all the way to the saphenous opening. This oval-shaped aperture forms in the wide fascia of your thigh. The vein then passes through the fibrous membrane.
(in Medical Dictionary)

The saphenous vein runs behind the external malleolus, the protrusion on the outside side of the ankle joint. It joins with the popliteal vein behind the knee.
(in Medical Dictionary)