oxygenation

US /ˌɑːk.sɪ.dʒəˈneɪ.ʃən/
UK /ˌɑːk.sɪ.dʒəˈneɪ.ʃən/
1.

oxy hóa

the process of adding oxygen to something:

:
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Oxygenation of the blood is a key function of the lungs.
:
oxygenoxygen mask