A substance, agent, or device that prevents or reduces oxygenation or oxidative damage.
From anti- + oxygenator (something that oxygenates) + -or (agent noun). Emerged in medical and biochemical terminology as technology advanced in the 20th century.
In medical contexts, antioxygenators work alongside oxygenators—your lungs and artificial ventilators oxygenate your blood, but your body's antioxygenators work overtime to prevent oxygen from becoming toxic waste at the cellular level.
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