The prefix "immuno-" is used to denote something related to the immune system. However, there are a few synonyms for this prefix that can be used in different contexts. For instance, "immunological" is often used to describe processes or phenomena related to the immune system. Another synonym is "immunogenic", which refers to the ability of a substance to elicit an immune response. Similarly, "immunoreactive" is used to describe substances that can bind to antibodies and trigger a response from the immune system. Additionally, "immune-mediated" is used to describe processes that involve the immune system's intervention in a disease or condition. Overall, these synonyms for "immuno-" can help us understand different aspects of the immune system and its functions.