deoxygenate

/diːˈɑksɪdʒəneɪt/
verb
  1. To remove oxygen from something, such as air, water, or blood.
    • The machine helps deoxygenate the water in the fish tank to simulate high-altitude conditions.
    • Scientists deoxygenate the chamber to study how plants survive without oxygen.
    • When you hold your breath, your blood begins to deoxygenate over time.
Antonyms
What does "deoxygenate" mean? | whatsthatwordmean | whatsthatwordmean