More tertian is a phrase used to describe something that occurs every third day, specifically related to diseases such as malaria. Some common synonyms for more tertian include alternate day fever, tertian fever, and every other day fever. These phrases all describe a similar pattern of fever that occurs every other day or every third day. Other potential synonyms may include cyclic fever or periodic fever, as these terms also describe a recurring pattern of fever over a specific period of time. Regardless of the specific terminology used, more tertian fever is a unique type of infection that requires careful monitoring and treatment to ensure a full recovery.