# heat exhaustion

> English word · Noun

## Definitions
1. An illness caused by overheating and excessive sweating, characterised by nausea, headache, thirst, weakness, and high body temperature; prognosis is good if cooling and hydration are pursued promptly.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/heat-exhaustion