noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   sunstroke obsolete, uncountable
2. 2
   sudden prostration due to exposure to the sun or excessive heat wordnet

Synonyms

All synonyms

insolationsunstrokesunstrokethermic fever

Etymology

From Latin sīriāsis, from Ancient Greek σειρίᾱσις (seiríāsis, “heatstroke”)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.