oxygenatePronunciation: /ˈɒksɪdʒəneɪt, ɒkˈsɪdʒ-/Definition of oxygenate verb [with object] supply, treat, charge, or enrich with oxygen: (as adjective oxygenated)a good supply of oxygenated bloodDerivatives oxygenationPronunciation: /-ˈneɪʃ(ə)n/ noun Origin: late 18th century: from French oxygéner 'supply with oxygen' + -ate3oxygenate in other Oxford dictionaries Definition of oxygenate in the US English dictionary