Saphenous \Sa*phe"nous\, a. [Gr. ? manifest.]

(Anat.)
   (a) Manifest; -- applied to the two principal superficial veins of the lower limb of man.
   (b) Of, pertaining to, or in the region of, the saphenous veins; as, the saphenous nerves; the saphenous opening, an opening in the broad fascia of the thigh through which the internal saphenous vein passes.

Source: Webster's Revised Unabridged Dictionary (1913)