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A severe and often fatal illness produced by exposure to excessively high temperatures, especially when accompanied by marked exertion; characterized by headache, vertigo, confusion, hot dry skin, and a slight rise in body temperature; in severe cases, high fever, vascular collapse, and coma develop.
Farlex Partner Medical Dictionary © Farlex 2012
heat apoplexy(1) A potentially fatal response to excess heat outside the body; heatstroke.
(2) A nonspecific term for any cyclical fever occurring in malaria; ardent fever.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.