1. Impregnate, combine, or supply with oxygen
   "oxygenise blood";
   - oxygenate, oxygenize, aerate
    
2. Dehydrogenate with oxygen
   "They oxygenised the solution to remove impurities";
   - oxygenize
    
3. Change (a compound) by increasing the proportion of the electronegative part; or change (an element or ion) from a lower to a higher positive valence: remove one or more electrons from (an atom, ion, or molecule)
   "They oxygenised the molecule to increase its reactivity";
   - oxygenize

Derived forms: oxygenising, oxygenises, oxygenised

Type of: alter, change, dehydrogenate, modify, process, treat