| Noun | 1. | vena metacarpus - dorsal and palmar veins of the handvein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood hand, manus, mitt, paw - the (prehensile) extremity of the superior limb; "he had the hands of a surgeon"; "he extended his mitt" | |