Is an abnormally high fever.
Abnormally elevated body temperature, as from a fever or activation of the sympathetic nervous system due to a drug, e.g., amphetamine.
A body temperature of above 41.1°C.
Extremely elevated body temperature sometimes occurring with acute infections in children or in others during general anesthesia. Treatment is by sponging the body with tepid water and administering antipyretic (fever-reducing) drugs.
An elevation of body temperature that is markedly abnormal. It may be produced by physical agents such as hot baths, diathermy, or hot air or by reaction to infection caused by microorganisms.