Noun, pl. jugular veins
1. Veins that bring deoxygenated blood from the head back to the heart via the superior vena cava. (wikipedia.org)
2. Any of several veins on each side of the neck, which drain the brain, face and neck of deoxygenated blood. (wiktionary.org)
3. Any of several large veins in the neck, carrying blood from the head and face. (Google Dictionary)
4. Veins in the neck that return blood from the head. (wordnetweb.princeton.edu)
vein: from Old French veine, from Latin vena “a blood vessel,” also “a water course, a vein of metal, a person’s natural ability or interest,” of unknown origin.
jugular: See Jugular.