vena

from WordNet (r) 3.0 (2006)

vena
    n 1: a blood vessel that carries blood from the capillaries
         toward the heart; "all veins except the pulmonary vein
         carry unaerated blood" [syn: {vein}, {vena}, {venous blood
         vessel}]

from The Collaborative International Dictionary of English v.0.48

Vena \Ve"na\, n.; pl. {Venae}. [L. See {Vein}.]
   A vein.
   [1913 Webster]

   {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}.
      [1913 Webster]