heat exhaustion



a condition characterized by faintness, rapid pulse, nausea, profuse sweating, cool skin, and collapse, caused by prolonged exposure to heat accompanied by loss of adequate fluid and salt from the body.

Origin of heat exhaustion

First recorded in 1935–40
Also called heat prostration.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for heat exhaustion

  • Although the brutes have the smallest modicum of brains, they are very liable to attacks of illness from heat-exhaustion.

    Khartoum Campaign, 1898|Bennet Burleigh

British Dictionary definitions for heat exhaustion

heat exhaustion


a condition resulting from exposure to intense heat, characterized by dizziness, abdominal cramp, and prostrationAlso called: heat prostration Compare heatstroke

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for heat exhaustion

heat exhaustion


A condition caused by exposure to heat, marked by prostration, weakness, and collapse, resulting from unrecognized or unavoidable dehydration.heat prostration

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.