The word "oxygenous" refers to something containing or relating to oxygen. There are various synonyms for this word, including aerobic, oxidizing, oxygenating, and oxygenic. The term "aerobic" is often used to describe organisms that require oxygen for survival and growth, such as plants or animals. "Oxidizing" is used to describe a chemical reaction that involves the transfer of electrons to oxygen, resulting in oxidation. "Oxygenating" and "oxygenic" both relate to the process of adding oxygen to something, such as water or air. Overall, these synonyms highlight the importance of oxygen in various contexts, from biology to chemistry.