(anatomy) In tetrapods, a vein that returns blood to the heart after it has circulated through the lungs.

(anatomy) A short, wide vein located in the abdominal cavity formed by the union of the superior mesenteric and splenic veins that channels blood from the gastrointestinal tract and spleen to capillary beds in the liver.

(anatomy) The great saphenous vein, or (less commonly) the small saphenous vein.

Of similar kind.

Quartz occurring as gangue in a vein.

(anatomy) A communicant vein between the great saphenous vein and the small saphenous vein.

(anatomy) A large vein running from the apex of the heart to the base of the ventricles.

(anatomy) A vein that collects the blood from the interior of the cranium, the superficial part of the face, and the neck, runs down the neck on the outside of the internal and common carotid arteries, and unites with the subclavian vein to form the brachiocephalic vein.

(anatomy) A broad unpaired vein formed by the junction of internal cerebral veins and uniting with the inferior sagittal sinus to form the straight sinus.

(anatomy) Either of two veins, of which one is formed on each side of the body by the union of the external and internal iliac veins, and which unite to form the inferior vena cava at the level of the fifth lumbar vertebra.