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Medical Term:


Pronunciation: hēt′strōk

Definition: 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.

Synonym(s): heat apoplexy1, heat hyperpyrexia, malignant hyperpyrexia, thermic fever