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1. Dictionary

   Heat

   /hēt/

   

   noun

   • 1. the quality of being hot; high temperature: "it is sensitive to both heat and cold" Similar hotnesswarmthwarmnesshigh temperaturefeverfeverishnessrare:calefactionOpposite cold
   • ▪ heat seen as a form of energy arising from the random motion of the molecules of bodies, which may be transferred by conduction, convection, or radiation.
   • ▪ hot weather conditions: "the oppressive heat was making both men sweat" Similar hot weatherhotnesswarm weatherwarmthwarmnesssultrinessclosenessmugginesshumidityswelterheatwavehot spellliterary:dog daysrare:torridnesstorridityOpposite cold weather
   • ▪ a source or level of heat for cooking: "remove from the heat and beat in the butter"
   • ▪ a spicy quality in food that produces a burning sensation in the mouth: "chili peppers add taste and heat to food"
   • ▪ the amount of heat that is needed to cause a specific process or is evolved in such a process: technical "the heat of formation"
   • ▪ a single operation of heating something, especially metal in a furnace: technical "about 100 tons is removed in each heat"
   • 2. intensity of feeling, especially of anger or excitement: "words few men would dare use to another, even in the heat of anger" Similar passionintensity of feelingardorfervorvehemencewarmthintensityanimationearnestnesseagernessenthusiasmexcitementagitationangerfuryviolencerare:fervencyardencypassionatenessOpposite apathy
   • ▪ intensive and unwelcome pressure or criticism, especially from the authorities: informal "a flurry of legal proceedings turned up the heat in the dispute"
   • 3. a preliminary round in a race or contest: "the 200-meter heats"

   verb

   • 1. make or become hot or warm: "the room faces north and is difficult to heat" Similar warmwarm upheat upmake hotmake warmraise something's temperaturetake the chill offreheatcookboilbakeroasttoaststewfrygrillinformal:hothot upbecome hotbecome warmgrow hotgrow warmbecome hotterbecome warmerget hotterget warmerincrease in temperaturerise in temperatureinformal:hot upOpposite coolcool down
   • ▪ (of a person) become excited or impassioned: "he seemed to calm down as quickly as he had heated up"
   • ▪ become more intense and exciting: "the action really begins to heat up" Similar become impassionedbecome excitedbecome animatedgrow passionategrow vehementget angrybecome enragedget annoyedOpposite calm down
   • ▪ inflame; excite: "this discourse had heated them" Similar become impassionedbecome excitedbecome animatedgrow passionategrow vehementget angrybecome enragedget annoyedOpposite calm down

   Word Origin Old Englishhǣtu (noun), hǣtan (verb), of Germanic origin; related to Dutch hitte (noun) and German heizen (verb), also to hot.

   Scrabble Points: 7

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2. People also ask

   What does heat mean in physics?

   • physics : the energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed Add some cayenne pepper for extra heat. Verb I heated the vegetables in the microwave. They heat their house with a wood stove.

   Heat Definition & Meaning - Merriam-Webster

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   Is heat a noun or noun?

   • As a common noun, English heat or warmth (just as French chaleur, German Wärme, Latin calor, Greek θάλπος, etc.) refers to (the human perception of) either thermal energy or temperature. Speculation on thermal energy or "heat" as a separate form of matter has a long history, identified as caloric theory, phlogiston theory, and fire .

   Heat - Wikipedia

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   What does hot weather mean?

   • a period of hot weather. a sharp, pungent flavor, as that produced by strong spices. He spoke with much heat and at great length. Soldiers must make snap decisions in the heat of battle with no certainty of the outcome. In the heat of his hasty departure he forgot his keys.

   HEAT Definition & Meaning | Dictionary.com

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   Is heat a body?

   • It may be remarked further, that many facts have lately transpired which tend to overthrow the hypothesis that heat is itself a body, and to prove that it consists in a motion of the ultimate particles of bodies. The process function Q was introduced by Rudolf Clausius in 1850.

   Heat - Wikipedia

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   What is heat in thermodynamics?

   • A celebrated and frequent definition of heat in thermodynamics is based on the work of Carathéodory (1909), referring to processes in a closed system. Carathéodory was responding to a suggestion by Max Born that he examine the logical structure of thermodynamics.

   Heat - Wikipedia

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3. www.merriam-webster.com › dictionary › heatHeat Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › heat

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   Learn the various meanings and uses of the word heat as a verb and a noun, with synonyms, examples, and word history. Find out how heat relates to temperature, energy, emotion, competition, and more.

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5. en.wikipedia.org › wiki › HeatHeat - Wikipedia

   en.wikipedia.org › wiki › Heat

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   In thermodynamics, heat is the thermal energy transferred between systems due to a temperature difference. [1] . In colloquial use, heat sometimes refers to thermal energy itself. Thermal energy is the kinetic energy of vibrating and colliding atoms in a substance.

6. Videos

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7. sciencenotes.org › what-is-heat-definition-and-formulaWhat Is Heat? Definition and Formulas - Science Notes and ...

   sciencenotes.org › what-is-heat-definition-and-formula

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   Mar 6, 2024 · Heat is the thermal energy transfer between systems or bodies due to a temperature difference. Learn how to calculate heat and enthalpy, and how they relate to entropy and thermodynamics.

8. www.britannica.com › science › heatHeat | Definition & Facts | Britannica

   www.britannica.com › science › heat

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   1 day ago · Heat is energy transferred from one body to another due to a temperature difference. Learn about the types, units, and modes of heat, and how it relates to temperature and phase changes.

   • Author: The Editors of Encyclopaedia Britannica

9. www.dictionary.com › browse › heatHEAT Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › heat

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   noun. a relatively high degree of warmth. Antonyms: coolness. the condition or quality of being hot: The heat of the oven will caramelize the natural sugars in the vegetables, enhancing their flavor. Synonyms: hotness, warmth. the degree of hotness; temperature: Heat is measured with a thermometer.

10. dictionary.cambridge.org › dictionary › englishHEAT | English meaning - Cambridge Dictionary

    dictionary.cambridge.org › dictionary › english

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    Learn the meaning of heat as a noun and a verb in English, with synonyms, antonyms, and idioms. Find out how heat relates to temperature, energy, emotion, competition, and biology.

11. wonders.physics.wisc.edu › what-is-heatHeat – The Wonders of Physics – UW–Madison

    wonders.physics.wisc.edu › what-is-heat

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    Heat is a form of energy that makes atoms and molecules move faster. Learn how to measure heat in different units, how heat is produced by burning or friction, and how heat relates to temperature and absolute zero.