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Wiktionary

thermal

See also: Thermal and -thermal

English

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Etymology

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From French thermal, from New Latin *thermalis, from Ancient Greek θέρμη (thérmē, “heat”), from Proto-Indo-European *gʷʰer- (“to heat, warm”).

Pronunciation

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Adjective

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thermal (not comparable)

  1. Pertaining to heat or temperature.
    • 2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, in 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.
  2. (fabric) Providing efficient insulation so as to keep the body warm.
  3. Caused or brought about by heat.
  4. (stone) Having a rough finish from treatment with a blowtorch.

Hyponyms

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Derived terms

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Translations

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providing efficient insulation so as to keep the body warm

Noun

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thermal (plural thermals)

  1. (meteorology) A column of rising air in the lower atmosphere created by uneven heating of a planet's surface.

Synonyms

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Coordinate terms

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Translations

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Verb

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thermal (third-person singular simple present thermals, present participle thermaling or thermalling, simple past and past participle thermaled or thermalled)

  1. (stone) To create a rough finish on stone by treating it with a high-temperature blowtorch.
  2. (gliding, often in the present participle) To fly an unpowered aircraft in a thermal (column of rising air).

Coordinate terms

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Further reading

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French

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Etymology

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From Ancient Greek.

Pronunciation

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Adjective

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thermal (feminine thermale, masculine plural thermaux, feminine plural thermales)

  1. thermal

Descendants

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  • → Romanian: termal
  • → Turkish: termal

Further reading

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Interlingua

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Adjective

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thermal (not comparable)

  1. thermal
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