Vena cava

//ˌviːnə ˈkeɪvə// noun

Definitions

Noun
  1. 1
    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.
  2. 2
    either of two large veins that return oxygen-depleted blood to the right atrium of the heart wordnet

Etymology

Literally "hollow vein."

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