[ˈθəːml], (Adjective)

Definitions:
- relating to heat
(e.g: thermal conductivity)


Phrases:

Origin:
mid 18th century (in the sense ‘relating to hot springs’): from French, from Greek thermē ‘heat’

[ˈθəːml], (Noun)

Definitions:
- an upward current of warm air, used by gliders, balloonists, and birds to gain height

- a thermal garment, especially underwear


Phrases:

Origin:
mid 18th century (in the sense ‘relating to hot springs’): from French, from Greek thermē ‘heat’