venous /ˈviː.nəs/ adjective4 •Of or pertaining to veins.Her venous circulation was poor, leading to varicose veins. •Possessing veins.It was a sample of venous tissue. •Having numerous veins.The tree has highly serrated and venous leaves. •Having passed through the capillaries and given up oxygen for the tissues and become charged with carbon dioxide. formsmore venous · most venous