English Explanatory Dictionary

thermal

English dictionary entry

Meanings

adj
  1. Pertaining to heat or temperature.
  2. Providing efficient insulation so as to keep the body warm.
  3. Caused or brought about by heat.
  4. Having a rough finish from treatment with a blowtorch.
noun
  1. A column of rising air in the lower atmosphere created by uneven heating of a planet's surface.
  2. FLIR.
verb
  1. To create a rough finish on stone by treating it with a high-temperature blowtorch.
  2. To fly an unpowered aircraft in a thermal (column of rising air).
name
  1. A census-designated place in Riverside County, California, United States.

Pronunciation

/ˈθɜːməl/ LL-Q1860 (eng)-Vealhurl-thermal.wav /ˈθɝməl/

Word forms

thermal thermals thermaling thermalling thermaled thermalled

Etymology

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

Synonyms

thermal column

Related words

therm thermo-

Derived words

accumulated thermal unit allothermal anisothermal athermal autothermal biothermal bithermal British thermal unit carbothermal chronothermal coefficient of thermal expansion cryothermal dendrothermal diathermal differential thermal analysis dynamothermal electrothermal endothermal epithermal eurythermal exothermal geothermal gravithermal gravothermal gyrothermal haematothermal hematothermal heterothermal homeothermal homothermal hyperthermal hypothermal isothermal macrothermal magnetothermal mechanothermal megathermal mesothermal microthermal mucothermal multithermal nanothermal non-thermal nonthermal nuclear-thermal rocket optothermal oxythermal photothermal pluviothermal poikilothermal polythermal prethermal pseudothermal recuperative thermal oxidizer regenerative thermal oxidizer solar thermal collector stenothermal subthermal superthermal suprathermal
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