Definition from Wiktionary, the free dictionary
thermal (plural thermals)
- (meteorology) A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
column of rising air
thermal (not comparable)
- Pertaining to heat or temperature.
2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, American Scientist, volume 101, number 3, page 200:
- Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.
- (fabric) Providing efficient insulation so as to keep the body warm.
- Caused, brought about by heat.
pertaining to heat or temperature
providing efficient insulation so as to keep the body warm
Caused, brought about by heat
- thermal in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
- thermal in The Century Dictionary, The Century Co., New York, 1911
From Ancient Greek.