What does thermal mean?

Definitions for thermal
ˈθɜr məlther·mal

Here are all the possible meanings and translations of the word thermal.

Princeton's WordNet

  1. thermal(adj)

    rising current of warm air

  2. thermal, thermic, caloric(adj)

    relating to or associated with heat

    "thermal movements of molecules"; "thermal capacity"; "thermic energy"; "the caloric effect of sunlight"

  3. thermal(adj)

    of or relating to a hot spring

    "thermal water"

  4. thermal(adj)

    caused by or designed to retain heat

    "a thermal burn"; "thermal underwear"


  1. thermal(Noun)

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

  2. thermal(Adjective)

    pertaining to heat or temperature.

  3. thermal(Adjective)

    providing efficient insulation so as to keep the body warm.

  4. Origin: From *, from θέρμη.

Webster Dictionary

  1. Thermal(adj)

    of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters


  1. Thermal

    A thermal column is a column of rising air in the lower altitudes of the Earth's atmosphere. Thermals are created by the uneven heating of the Earth's surface from solar radiation, and are an example of convection, specifically atmospheric convection. The Sun warms the ground, which in turn warms the air directly above it. Dark earth, urban areas and roadways are good sources of thermals. The warmer air near the surface expands, becoming less dense than the surrounding air mass. The mass of lighter air rises, and as it does, it cools due to it expands in the lower pressure of the higher altitude. It stops rising when it has cooled to the same temperature as the surrounding air. Associated with a thermal is a downward flow surrounding the thermal column. The downward moving exterior is caused by colder air being displaced at the top of the thermal. The size and strength of thermals are influenced by the properties of the lower atmosphere. Generally, when the air is cold, bubbles of warm air are formed by the ground heating the air above it and can rise like a hot air balloon. The air is then said to be unstable. If there is a warm layer of air higher up, an inversion can prevent thermals from rising high and the air is said to be stable.

Chambers 20th Century Dictionary

  1. Thermal

    thėr′mal, adj. pertaining to heat: warm.—n. Therm, a thermal unit.—n.pl. Ther′mæ, hot springs or baths.—adv. Ther′mally.—n. Thermatol′ogy, the science of the treatment of disease by heat, esp. by thermal mineral waters.—adj. Ther′mic, thermal.—adv. Ther′mically.—ns. Thermobarom′eter, an apparatus for measuring pressure of the atmosphere from the boiling-point of water; Thermochem′istry, that branch of chemistry which treats of the relations between chemical action and heat; Ther′mochrosy, the property possessed by rays of radiant heat of having varying wave-lengths and degrees of refrangibility; Ther′mo-curr′ent, a thermo-electric current.—adj. Ther′mo-dynam′ic.—n. Ther′mo-dynam′ics, the branch of physics which treats of heat as a mechanical agent.—adj. Ther′mo-elec′tric.—ns. Ther′mo-electric′ity, electricity developed by the unequal heating of bodies; Ther′mo-electrom′eter, an instrument for measuring the strength of a current of electricity by its effect in producing heat; Thermogen′esis, the production of heat, esp. in the body by physiological processes.—adjs. Thermogenet′ic, Thermogen′ic.—ns. Ther′mogram, the record made by a thermograph; Ther′mograph, an automatic self-registering thermometer; Thermog′raphy, any process of writing involving the use of heat; Ther′mo-mag′netism, magnetism as modified or produced by the action of heat on the body magnetised or on the medium surrounding it; Thermomet′rograph, a self-registering thermometer; Ther′mo-pile, a thermo-electric battery used as a thermometer; Ther′moscope, an instrument for detecting changes of temperature without measuring them accurately.—adj. Thermoscop′ic.—adv. Thermoscop′ically.—n. Ther′mostat, an appliance for showing temperatures automatically by the expansion of substances—used in regulating steam pressures, &c.—adj. Thermostat′ic.—adv. Thermostat′ically.—adjs. Thermot′ic, -al, pertaining to heat.—n. Thermot′ics, the science of heat. [Gr. thermos, hot—thermē, heat—therein, to heat.]

How to pronounce thermal?

  1. Alex
    US English

How to say thermal in sign language?

  1. thermal


  1. Chaldean Numerology

    The numerical value of thermal in Chaldean Numerology is: 6

  2. Pythagorean Numerology

    The numerical value of thermal in Pythagorean Numerology is: 5

Examples of thermal in a Sentence

  1. Cameron McRae:

    Thermal coal is still going to be a large part of the energy mix in the future.

  2. Pampa Energia:

    In thermal and wind energy it is an investment of 400 million between both of them.

  3. Eduardo Phillipe Miranda:

    We produce 40-45 percent of all our electricity here using geo-thermal power plants.

  4. Polina Diyachkina:

    The reality is that the reliance on thermal power generation will remain quite high.

  5. Ai Kashiwagi:

    Renewable energy sources such as solar, wind and thermal have so much potential here.

Images & Illustrations of thermal

  1. thermalthermalthermalthermalthermal

Popularity rank by frequency of use


Translations for thermal

From our Multilingual Translation Dictionary

Get even more translations for thermal »


Find a translation for the thermal definition in other languages:

Select another language:

  • - Select -
  • Chinese - Simplified 简体中文 (Chinese - Simplified)
  • Chinese - Traditional 繁體中文 (Chinese - Traditional)
  • Spanish Español (Spanish)
  • Japanese 日本語 (Japanese)
  • Portuguese Português (Portuguese)
  • German Deutsch (German)
  • Arabic العربية (Arabic)
  • French Français (French)
  • Russian Русский (Russian)
  • Kannada ಕನ್ನಡ (Kannada)
  • Korean 한국어 (Korean)
  • Hebrew עברית (Hebrew)
  • Ukrainian Український (Ukrainian)
  • Urdu اردو (Urdu)
  • Hungarian Magyar (Hungarian)
  • Hindi मानक हिन्दी (Hindi)
  • Indonesian Indonesia (Indonesian)
  • Italian Italiano (Italian)
  • Tamil தமிழ் (Tamil)
  • Turkish Türkçe (Turkish)
  • Telugu తెలుగు (Telugu)
  • Thai ภาษาไทย (Thai)
  • Vietnamese Tiếng Việt (Vietnamese)
  • Czech Čeština (Czech)
  • Polish Polski (Polish)
  • Indonesian Bahasa Indonesia (Indonesian)
  • Romanian Românește (Romanian)
  • Dutch Nederlands (Dutch)
  • Greek Ελληνικά (Greek)
  • Latin Latinum (Latin)
  • Swedish Svenska (Swedish)
  • Danish Dansk (Danish)
  • Finnish Suomi (Finnish)
  • Persian فارسی (Persian)
  • Yiddish ייִדיש (Yiddish)
  • Armenian հայերեն (Armenian)
  • Norwegian Norsk (Norwegian)
  • English English (English)

Discuss these thermal definitions with the community:

Word of the Day

Would you like us to send you a FREE new word definition delivered to your inbox daily?

Please enter your email address:


Use the citation below to add this definition to your bibliography:


"thermal." Definitions.net. STANDS4 LLC, 2019. Web. 23 Jul 2019. <https://www.definitions.net/definition/thermal>.

Are we missing a good definition for thermal? Don't keep it to yourself...

Free, no signup required:

Add to Chrome

Get instant definitions for any word that hits you anywhere on the web!

Free, no signup required:

Add to Firefox

Get instant definitions for any word that hits you anywhere on the web!

Nearby & related entries:

Alternative searches for thermal:

Thanks for your vote! We truly appreciate your support.