vena cava

Definition of vena cava

vena cava

(VEE-nuh KAY-vuh)
A large vein that carries blood to the heart from other areas of the body. The vena cava has two parts: the superior vena cava and the inferior vena cava. The superior vena cava carries blood from the head, neck, arms, and chest. The inferior vena cava carries blood from the legs, feet, and organs in the abdomen and pelvis. The vena cava is the largest vein in the body.

Source: NCI Dictionary of Cancer Terms