Examples from the Web for thermal
Williams An Ohio- based corporation that works in the electrical and thermal insulation industry.
Body parts, food, and appliances seen with a thermal imaging camera.
Thermal maps of Earth reveal a lot about the past and present, including changing conditions under climate change.
That measure is known as thermal inertia, and it provides information far beyond what we can get from visible light alone.
Ohio-based corporation that works in the electrical and thermal insulation industry.After Hobby Lobby, These 82 Corporations Could Drop Birth Control Coverage|Abby Haglage|June 30, 2014|DAILY BEAST
These divisions overlap each other; the thermal rays are in part visual, the visual rays in part chemical, and vice versa.Fragments of science, V. 1-2|John Tyndall
Helium is contained almost universally in the gases which bubble up with the water of thermal springs.
After dinner, I went for a stroll in the park of the thermal establishment.The Works of Guy de Maupassant, Volume VIII.|Guy de Maupassant
Constant sickness, either arising from mucous inflammation or ulcer of the stomach, contra—indicate the use of the thermal water.Buxton and its Medicinal Waters|Robert Ottiwell Gifford-Bennet
Onward through many parallels of latitude—through many degrees of the thermal line!The Quadroon|Mayne Reid
British Dictionary definitions for thermal
Word Origin and History for thermal
1756, "having to do with hot springs," from French thermal (Buffon), from Greek therme "heat," from PIE *ghwerm-/*ghworm- "warm" (cf. Latin fornax "an oven, kiln," formus "warm," Old English wearm; see warm). Sense of "having to do with heat" is first recorded 1837. The noun meaning "rising current of relatively warm air" is recorded from 1933.