Ve"na (?), n.; pl. Venae (#). [L. See Vein.]
A vein.
Vena cava; pl. Venae cavae. [L., literally, hollow vein.] Anat. Any one of the great systemic veins connected directly with the heart.-- Vena contracta. [L., literally, contracted vein.] Hydraulics The contracted portion of a liquid jet at and near the orifice from which it issues. -- Vena portae; pl. VenAe portae. [L., literally, vein of the entrance.] Anat. The portal vein of the liver. See under Portal.
© Webster 1913.