Oxygenate/ˈɑːksɪdʒəneɪt/ Definition 1 of 2Pro Tip 1/3Environmental Context Often used when discussing environmental efforts to improve air or water quality. The factory installed filters to oxygenate emissions before release. Pro Tip 2/3Aquatic Life A focus on adding oxygen to water to support aquatic life, like in aquariums or ponds. They installed a pump to help oxygenate the fish tank. Pro Tip 3/3Active Voice 'Oxygenate' is action-based, indicating a process is being done to enhance oxygen levels. The team used algae to naturally oxygenate the lake.