from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of the chambers of the heart in humans and other mammals, receives oxygenated blood from the lungs via the pulmonary veins, and pumps it into the left ventricle.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the left upper chamber of the heart that receives blood from the pulmonary veins


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