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|Noun||1.||venous blood - blood found in the veins; "except in the pulmonary vein venous blood is rich in carbon dioxide and poor in oxygen"|
blood - the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets; "blood carries oxygen and nutrients to the tissues and carries away waste products"; "the ancients believed that blood was the seat of the emotions"
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