heat
Americannoun
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a relatively high degree of warmth.
- Antonyms:
- coolness
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the condition or quality of being hot.
The heat of the oven will caramelize the natural sugars in the vegetables, enhancing their flavor.
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the degree of hotness; temperature.
Heat is measured with a thermometer.
Moderate heat is sufficient for a child’s bathwater.
- Synonyms:
- caloricity
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the sensation of warmth or hotness.
She enjoyed the pleasant heat on her face and hands from the crackling fire.
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a bodily temperature higher than normal.
The heat caused by physical exertion is reduced by sweating.
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added or external energy that causes a rise in temperature, expansion, evaporation, or other physical change.
The application of heat causes particles of matter to move more rapidly.
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Physics. a nonmechanical energy transfer with reference to a temperature difference between a system and its surroundings or between two parts of the same system. Q
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a hot condition of the atmosphere or physical environment; hot season or weather.
They go up north in the summer to escape the heat.
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a period of hot weather.
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a sharp, pungent flavor, as that produced by strong spices.
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warmth or intensity of feeling; vehemence; passion.
He spoke with much heat and at great length.
- Synonyms:
- impetuosity, excitement, fever, flush, zeal, fervor, ardor
- Antonyms:
- indifference
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a point or period of high intensity in an action, process, situation, etc..
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.
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Often the heat pressure to act, work, etc..
All this media attention is putting the heat on him to change his position on the issue.
Give me a deadline—I work best under a little heat.
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Slang. intensified pressure verging on coercion and involving intimidation or implied threat, especially in a police investigation.
They had to use heat to get the guy to give them some names.
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Slang. the heat, the police.
We split when we saw the heat coming.
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Slang. armed protection, especially a pistol, revolver, or other firearm.
All guards carry some heat.
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a single intense effort; a sustained, concentrated, and continuous operation.
The painting was finished at a heat.
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Sports.
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a single course in or division of a race or other contest.
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a race or other contest in which competitors attempt to qualify for entry in the final race or contest.
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Metallurgy.
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a single operation of heating, as of metal in a furnace, in the treating and melting of metals.
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a quantity of metal produced by such an operation.
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Zoology.
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sexual receptiveness in animals, especially females.
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the period or duration of such receptiveness.
Do not frequent dog parks or other dog-populated areas while your dog is in heat.
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Slang. the heat, awesome or excellent; cool.
Check out the photography on her website—that stuff’s the heat!
verb (used with object)
verb (used without object)
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to become hot or warm (often followed byup ).
It takes a while for the house to heat up.
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to become excited emotionally.
verb phrase
noun
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the energy transferred as a result of a difference in temperature
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the random kinetic energy of the atoms, molecules, or ions in a substance or body
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the sensation caused in the body by heat energy; warmth
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the state or quality of being hot
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hot weather
the heat of summer
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intensity of feeling; passion
the heat of rage
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pressure
the political heat on the government over the economy
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the most intense or active part
the heat of the battle
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a period or condition of sexual excitement in female mammals that occurs at oestrus
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sport
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a preliminary eliminating contest in a competition
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a single section of a contest
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slang police activity after a crime
the heat is off
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slang criticism or abuse
he took a lot of heat for that mistake
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without pausing to think
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Also: in season. (of some female mammals) sexually receptive
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in a state of sexual excitement
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slang the police
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informal to increase the intensity of activity, coercion, etc
verb
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to make or become hot or warm
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to make or become excited or intense
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Internal energy that is transferred to a physical system from outside the system because of a difference in temperature and does not result in work done by the system on its surroundings. Absorption of energy by a system as heat takes the form of increased kinetic energy of its molecules, thus resulting in an increase in temperature of the system. Heat is transferred from one system to another in the direction of higher to lower temperature.
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See also thermodynamics See Note at temperature
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See estrus
Other Word Forms
- heatable adjective
- heatful adjective
- heatless adjective
- heatlike adjective
- reheat verb
- reheatable adjective
- self-heating adjective
- underheat verb (used with object)
- unheatable adjective
Etymology
Origin of heat
First recorded before 900; Middle English hete, Old English hǣtu; akin to German Hitze; hot
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The product was recalled as they potentially contain the cereulide toxin, which is heat resistant and can cause nausea and vomiting, according to the food safety authority of Ireland.
The Guernsey Community Foundation believes some islanders do not know they are eligible to receive financial support to help pay their heating bills.
From BBC
"We use very mild temperatures for a longer time. If the heat is too high, the flower burns and you lose its medicinal quality and colour," says Singh.
From BBC
At a previous hearing, he said the posts were "not befitting of someone as educated as myself and were said in the heat of the emotion".
From BBC
These molecules cause cells to use fuel less efficiently, releasing some of that energy as heat instead of converting it into usable power.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.