(biology) A small crossvein at the front of the wing of a dragonfly or damselfly

(anatomy) A short venous trunk of the face that is formed by the union of veins from the pterygoid plexus and that joins with the superficial temporal vein to form a vein which contributes to the formation of the external jugular vein.

(anatomy) The main vein conveying blood from the arm or forelimb, which is a continuation of the axillary vein and joins with the internal jugular vein to form the brachiocephalic vein.

(anatomy) Either of the two large veins of which each drains blood from one of the kidneys and empties into the inferior vena cava.

(anatomy) A vein that drains blood from the spleen and empties into the hepatic portal vein.

(geology) A crack in the surface of the Earth which contains mineral matter.

(pathology) Alternative spelling of deep vein thrombosis

(pathology) A potentially fatal condition in which one or more thrombi (or clots) form in the predominantly the leg or, more unusually, the arm. The clot may break free from the venous wall and travel via the circulatory system to the heart or to the lungs (causing a pulmonary embolism); this condition is often caused by keeping the legs bent for long periods but can also be caused by other medical problems.

Synonym of great saphenous vein

(anatomy) Synonym of small saphenous vein