Verb (used with object), : to oxygenate the blood.    From Dictionary.com. 

All else took on the tinge of these unoxygenated corpuscles.    From Wordnik.com.  [Fantastic Voyage]

She also allowed parts of herself to circulate through the doctor's body along with his unoxygenated blood.    From Wordnik.com.  [Charlotte's Nexus] Reference

Adventure and fantasy pioneerism aside, most people aren't going to get very excited about living on an arid, unoxygenated rock for a good portion of their lives.    From Wordnik.com.  [That Was Then - This Is Now - NASA Watch] Reference

Transposition of the aorta and pulmonary artery, which results in the heart's recirculating unoxygenated blood out to the body, used to be fatal about 90 percent of the time, but now has a 90 percent survival rate after surgery.    From Wordnik.com.  ['Your Baby Has A Problem'] Reference

Pulmonary arteries, which extend from the heart to the lungs, are the only arteries in the mammalian body that carry dark, unoxygenated blood.    From Wordnik.com. Reference

It is attended with a sensation of universal distress, which perhaps may arise from the circulation of unoxygenated blood, or the accumulation of carbon in the system; for the countenance becomes livid, and the skin, especially that of the extremities, receives a permanent dark colour.    From Wordnik.com.  [Cases of Organic Diseases of the Heart] Reference

It is generally known that the lower air-breathing Vertebrates (Reptiles and Batrachians) have the heart less completely divided than in the higher classes, so that the oxygenated (or arterial) blood and the unoxygenated (or venous) blood become mixed in the single or imperfectly divided ventricle.    From Wordnik.com.  [The Common Frog] Reference

As good catholics withdraw from the world now and then for the sake of their souls -- so I, for the sake of my body (and chiefly of my liver) have retired for a fortnight or so to the Yorkshire moors -- the nearest place to London where I can find dry air 1500 feet above the sea, and the sort of uphill exercise which routs out all the unoxygenated crannies of my organism.    From Wordnik.com.  [Life and Letters of Thomas Henry Huxley — Volume 2] Reference

In fact, however, this is by no means the case, and in the frog, in spite of the reception into a single chamber of both venous blood from the body, and of arterial blood from the lungs, special mechanical arrangements effect such a definite distribution of the two sorts of blood, that the unoxygenated fluid from the body is sent to the purifying respiratory surfaces (lungs and skin), and the pure oxygenated blood alone goes to the head and to the brain.    From Wordnik.com.  [The Common Frog] Reference