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Thermal

/ˈθɝməl/

A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.

📖 Definitions of "Thermal"

noun
  1. 1

    A column of rising air in the lower atmosphere created by uneven heating of Earth's surface.

verb
  1. 1

    (stone) To create a rough finish on stone by treating it with a high-temperature blow-torch.

  2. 2

    (gliding, often in the present participle) To fly an unpowered aircraft in a (thermal) column of rising air.

adjective
  1. 1

    Pertaining to heat or temperature.

  2. 2

    (fabric) Providing efficient insulation so as to keep the body warm.

  3. 3

    Caused or brought about by heat.

  4. 4

    (stone) Having a rough finish by treatment with a blow-torch.

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