1) Hyperpyrexia 2) Hyperthermia 1) Hyperthermia 2) Physiological condition 3) Physiological state 
hyperthermia, hyperthermy 1. Therapeutically induced hyperpyrexia. 2. Characterized by excess heat; of very high temperature. 3. The condition of having a body temperature substantially above the normal either as a result of natural causes or artificially induced (e.g. for therapeutic purposes).