from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A vein that carries oxygenated blood from the lungs to the left atrium of the heart.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. In tetrapods, the vein that returns blood to the heart after it has circulated through the lungs.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of four veins that carry arterial blood from the lungs to the left atrium of the heart
Sorry, no etymologies found.