Oxygenation may refer to: Oxygenation (environmental), a measurement of dissolved oxygen concentration in soil or water Oxygen saturation (medicine), the process by which concentrations of oxygen increase within a tissue Water oxygenation, the process of increasing the oxygen saturation of the water Dioxygen complex, the chemical details of how metals bind oxygen Great Oxygenation Event, an ancient event that led to the rise of oxygen within our atmosphere See also Oxygenase, an enzyme that oxidizes a substrate by transferring the oxygen from molecular oxygen O2 (as in air) to it Oxidation