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|Noun||1.||cardinal vein - any of the major venous channels in primitive adult vertebrates and in embryos of higher vertebrates|
anterior cardinal vein - a major drainage channel from the cephalic part of the body
posterior cardinal vein - a major drainage channel from the caudal part of the body
common cardinal vein - the major return channels to the heart; formed by anastomosis of the anterior and posterior cardinal veins
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