Definition: I apologize for any confusion or misunderstanding, but as an AI language model, I don't have access to specific information about a particular vaccine such as the Influenza A (H5N1) Monovalent Vaccine Adjuvanted. The specific details and definition could vary based on multiple factors including the source of the information, the context in which it is used, and the intended audience. If you have any additional questions or need more information about a particular vaccine, I would be happy to help further.