OXYGENATING

Verb

oxygenating

present participle of oxygenate

Source: Wiktionary

OXYGENATE

Ox"y*gen*ate, v. t. [imp. & p. p. Oxygenated; p. pr. & vb. n. Oxygenating.] Etym: [Cf. F. oxygéner.] (Chem.)

Definition: To unite, or cause to combine, with oxygen; to treat with oxygen; to oxidize; as, oxygenated water (hydrogen dioxide).

Source: Webster’s Unabridged Dictionary 1913 Edition