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thermal
/ˈθɝməl/
noun
A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.
Synonymsthermal column
verb
(stone) To create a rough finish on stone by treating it with a high-temperature blow-torch.
(gliding, often in the present participle) To fly an unpowered aircraft in a (thermal) column of rising air.
adjective
Pertaining to heat or temperature.
(fabric) Providing efficient insulation so as to keep the body warm.
Caused or brought about by heat.
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