What does deoxygenate mean?
Deoxygenate is a formal, technical verb meaning to remove oxygen from a substance, system, or environment. It is especially common in discussions of water treatment, aquatic habitats, blood, respiratory medicine, and chemical processes. A laboratory might deoxygenate water to simulate a low-oxygen habitat, while a treatment system may deoxygenate wastewater before discharge or reuse. The related noun, deoxygenation, describes the process or the resulting reduction in oxygen, and the adjective deoxygenated commonly describes oxygen-depleted material such as blood or water. Although deoxygenate can sound unusual because it is formed by adding the prefix de- to oxygenate, its meaning is precise: it identifies the removal of oxygen rather than the addition of oxygen, as in oxygenate. The word is useful in scientific and environmental contexts where the exact substance whose oxygen content is being changed matters.
verbTo remove oxygen from a substance, system, or environment, especially water, blood, or a chemical mixture.
- To remove oxygen from a substance, system, or environment, especially water, blood, or a chemical mixture.
"The treatment plant uses aeration to deoxygenate the wastewater before releasing it into the river."
"Laboratories may deoxygenate the water in an aquarium to create a low-oxygen environment for certain species."
"The device is designed to deoxygenate blood as it passes through the extracorporeal circuit."
The prefix de- makes oxygenate act in reverse: instead of adding oxygen, deoxygenation takes it away.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does deoxygenate come from?
Deoxygenate is formed in English from de-, a prefix indicating removal or reversal, and oxygenate, meaning to combine with oxygen. Oxygenate itself is built from oxygen, whose name comes from Greek oxys, meaning sharp or acute, and genes, meaning producing. The same oxy- root appears in related words such as oxide, oxidation, and oxygen, and deoxygenate developed as the inverse counterpart of oxygenate.
Related word forms
How deoxygenate is actually used
Deoxygenate is primarily formal and technical, occurring in environmental science, medicine, biology, and chemistry. It is normally transitive and takes the substance being treated as its object.
Easily confused with deoxygenate
Deoxygenate means to remove oxygen, whereas dehydrate means to remove water or moisture.