Definition: Ospionium is a chemical compound that is commonly used in biological research and medical applications. It is named after the Greek word "ospon," which means "to be" or "be it." In this context, ospionium refers to a specific substance that acts as an immune suppressant in mice. The structure of ospionium is not well-defined, but it has been found in various biological systems and can have several roles. It is a potent inhibitor of the immune