Definition of vena cava noun from the Oxford Advanced American Dictionary

 

vena cava

 noun
noun
NAmE//ˌvinə ˈkeɪvə//
 
, NAmE//ˌvinəˈkɑvə//
 
(pl. venae cavae
NAmE//ˌvini ˈkeɪvi//
 
, NAmE//ˌviniˈkɑvi//
 
)
(anatomy)
 
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either of the two veins that take blood without oxygen in it toward the heart
See the Oxford Advanced Learner's Dictionary entry: vena cava