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- A process that results in a species having a higher oxidation state, that is, the net loss of electrons from an atom. Quite often oxygen is involved in the oxidation of another atom therefore it is an oxidant.
Source: Atmospheric Chemistry Glossary
- A chemical reaction that involves the loss of electrons; it usually but not always involves direct participation of oxygen and is an important process by which food components are utilised by the body's metabolism.
Source: Biotechnology Glossary
- The chemical addition of oxygen to break down pollutants or organizac waste; e.g., destruction of chemicals such as cyanides, phenols, and organic sulfur compounds in sewage by bacterial and chemical means.
Source: Terms of the Environment