venous: Meaning and Definition of

ve•nous

1. of, pertaining to, or of the nature of a vein.
2. having, characterized by, or composed of veins.
3. pertaining to the blood in the pulmonary artery, right side of the heart, and most veins, that has become deoxygenated and charged with carbon dioxide during its passage through the body and that in humans is normally dark red.