Hyperpyretic is a medical term that refers to a condition where the body temperature rises to an extremely high level, usually above 105 degrees Fahrenheit. Synonyms for hyperpyretic include feverish, pyretic, febrile, elevated temperature, and high body temperature. Other related terms include hyperthermic, which refers to an above-normal body temperature, and hyperthermia, which is a condition characterized by an excessive increase in body temperature above the normal range. These terms are commonly used in the medical field to describe various conditions that lead to an abnormal increase in body temperature, such as infections, heat stroke, and drug reactions.