Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Either of two large veins that drain blood from the upper body and from the lower body and empty into the right atrium of the heart.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Either of the two large veins that take oxygen depleted blood, from the upper body and from the lower body, and return it to the right atrium of the heart.

from the GNU version of the Collaborative International Dictionary of English

  • n. Any one of the great systemic veins connected directly with the heart.

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

  • n. either of two large veins that return oxygen-depleted blood to the right atrium of the heart

Etymologies

New Latin vēna cava : Latin vēna, vein + Latin cava, hollow.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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