Skip to the word

Added 9 October 2026

thermal

/ˈθɜːməl/ noun

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about thermal at Wordnik → Where our words come from →

Rising current of warm air.

adjective

Relating to or associated with heat.
thermal movements of molecules
Of or relating to a hot spring.
thermal water
Caused by or designed to retain heat.
a thermal burn

Origin

From French thermal, from New Latin *thermalis, from Ancient Greek θέρμη (thérmē, “heat”), from Proto-Indo-European *gʷʰer- (“to heat, warm”).

From Wiktionary, via Kaikki.org (CC BY-SA)

Back to today's word