heat hyperpyrexia

Thesaurus

Noun

1.

heat hyperpyrexia - collapse caused by exposure to excessive heatheatstrokecollapse, prostration - an abrupt failure of function or complete physical exhaustion; "the commander's prostration demoralized his men"heat exhaustion, heat prostration - a condition marked by dizziness and nausea and weakness caused by depletion of body fluids and electrolytesinsolation, siriasis, sunstroke, thermic fever - sudden prostration due to exposure to the sun or excessive heat