thermal

== English == === Etymology === From French thermal, from New Latin *thermalis, from Ancient Greek θέρμη (thérmē, “heat”), from Proto-Indo-European *gʷʰer- (“to heat, warm”). === Pronunciation === (Received Pronunciation, General Australian) IPA(key): /ˈθɜːməl/ (General American, Canada) IPA(key): /ˈθɝməl/ Rhymes: -ɜː(ɹ)məl === Adjective === thermal (not comparable) Pertaining to heat or temperature. (fabric) Providing efficient insulation so as to keep the body warm. Caused or brought about by heat. (stone) Having a rough finish from treatment with a blowtorch. ==== Hyponyms ==== aerothermal hydrothermal ==== Derived terms ==== ==== Related terms ==== therm thermo- ==== Translations ==== === Noun === thermal (plural thermals) (meteorology) A column of rising air in the lower atmosphere created by uneven heating of a planet's surface. ==== Synonyms ==== ==== Coordinate terms ==== ==== Translations ==== === Verb === thermal (third-person singular simple present thermals, present participle (US) thermaling or (UK) thermalling, simple past and past participle (US) thermaled or (UK) thermalled) (stone) To create a rough finish on stone by treating it with a high-temperature blowtorch. (gliding, often in the present participle) To fly an unpowered aircraft in a thermal (column of rising air). ==== Coordinate terms ==== edge (creating a finish on stone) thermal edge (creating a finish on stone) gliding (fly an unpowered aircraft) === Further reading === “thermal”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “thermal”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC. == French == === Etymology === From Ancient Greek. === Pronunciation === IPA(key): /tɛʁ.mal/ === Adjective === thermal (feminine thermale, masculine plural thermaux, feminine plural thermales) thermal ==== Descendants ==== → Romanian: termal → Turkish: termal === Further reading === “thermal”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012 == Interlingua == === Adjective === thermal (not comparable) thermal ==== Related terms ==== thermic