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heat

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heat

  [heet]
Use heat in a Sentence
–noun
1. the state of a body perceived as having or generating a relatively high degree of warmth.
2. the condition or quality of being hot: the heat of an oven.
3. the degree of hotness; temperature: moderate heat.
4. the sensation of warmth or hotness: unpleasant heat.
5. a bodily temperature higher than normal: the heat of a fever; the feeling of heat caused by physical exertion.
6. added or external energy that causes a rise in temperature, expansion, evaporation, or other physical change.
7. 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. Symbol: Q
8. a hot condition of the atmosphere or physical environment; hot season or weather.
9. a period of hot weather.
10. a sharp, pungent flavor, as that produced by strong spices.
11. warmth or intensity of feeling; vehemence; passion: He spoke with much heat and at great length.
12. maximum intensity in an activity, condition, etc.; the height of any action, situation, or the like: the heat of battle; the heat of passion.
13. extreme pressure, as of events, resulting in tension or strain: In the heat of his hasty departure he forgot his keys.
14. a single intense effort; a sustained, concentrated, and continuous operation: The painting was finished at a heat.
15. Slang. intensified pressure, esp. in a police investigation.
16. Slang. the police.
17. Slang. armed protection, esp. a pistol, revolver, or other firearm: All guards carry some heat.
18. Sports.
a. a single course in or division of a race or other contest.
b. a race or other contest in which competitors attempt to qualify for entry in the final race or contest.
19. Metallurgy.
a. a single operation of heating, as of metal in a furnace, in the treating and melting of metals.
b. a quantity of metal produced by such an operation.
20. Zoology.
a. sexual receptiveness in animals, esp. females.
b. the period or duration of such receptiveness: to be in heat.
–verb (used with object)
21. to make hot or warm (often fol. by up).
22. to excite emotionally; inflame or rouse with passion.
–verb (used without object)
23. to become hot or warm (often fol. by up).
24. to become excited emotionally.
—Verb phrase
25. heat up, to increase or become more active or intense: Business competition will heat up toward the end of the year.
Origin:
bef. 900; ME hete, OE hǣtu; akin to G Hitze; see hot

Related forms:
heat⋅a⋅ble, adjective
heatful, adjective
heatless, adjective
heatlike, adjective

Synonyms:
2. hotness, warmth. 3. caloricity. 11. ardor, fervor, zeal, flush, fever, excitement, impetuosity. 22. stimulate, warm, stir, animate.

Antonyms:
1. coolness. 11. indifference. 21. cool.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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heat   (hēt)   
n.   Physics

    1. A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.

    2. The transfer of energy from one body to another as a result of a difference in temperature or a change in phase.

    3. The condition of being hot.

    4. A degree of warmth or hotness: The burner was on low heat.

    5. The warming of a room or building by a furnace or another source of energy: The house was cheap to rent, but the heat was expensive.

    6. A furnace or other source of warmth in a room or building: The heat was on when we returned from work.

    7. Intensity, as of passion, emotion, color, appearance, or effect.

    8. The most intense or active stage: the heat of battle.

    9. A burning sensation in the mouth produced by spicy flavoring in food.

    10. Sports & Games One round of several in a competition, such as a race.

    11. A preliminary contest held to determine finalists.

    12. An intensification of police activity in pursuing criminals.

    13. The police. Used with the.

  2. The sensation or perception of such energy as warmth or hotness.

  3. An abnormally high bodily temperature, as from a fever.

    1. The condition of being hot.

    2. A degree of warmth or hotness: The burner was on low heat.

    3. The warming of a room or building by a furnace or another source of energy: The house was cheap to rent, but the heat was expensive.

    4. A furnace or other source of warmth in a room or building: The heat was on when we returned from work.

    5. Intensity, as of passion, emotion, color, appearance, or effect.

    6. The most intense or active stage: the heat of battle.

    7. A burning sensation in the mouth produced by spicy flavoring in food.

    8. Sports & Games One round of several in a competition, such as a race.

    9. A preliminary contest held to determine finalists.

    10. An intensification of police activity in pursuing criminals.

    11. The police. Used with the.

    1. The warming of a room or building by a furnace or another source of energy: The house was cheap to rent, but the heat was expensive.

    2. A furnace or other source of warmth in a room or building: The heat was on when we returned from work.

    3. Intensity, as of passion, emotion, color, appearance, or effect.

    4. The most intense or active stage: the heat of battle.

    5. A burning sensation in the mouth produced by spicy flavoring in food.

    6. Sports & Games One round of several in a competition, such as a race.

    7. A preliminary contest held to determine finalists.

    8. An intensification of police activity in pursuing criminals.

    9. The police. Used with the.

  6. A hot season; a spell of hot weather.

    1. Intensity, as of passion, emotion, color, appearance, or effect.

    2. The most intense or active stage: the heat of battle.

    3. A burning sensation in the mouth produced by spicy flavoring in food.

    4. Sports & Games One round of several in a competition, such as a race.

    5. A preliminary contest held to determine finalists.

    6. An intensification of police activity in pursuing criminals.

    7. The police. Used with the.

  8. Estrus.

  9. One of a series of efforts or attempts.

    1. Sports & Games One round of several in a competition, such as a race.

    2. A preliminary contest held to determine finalists.

    3. An intensification of police activity in pursuing criminals.

    4. The police. Used with the.

  11. Informal Pressure; stress.

  12. Slang

    1. An intensification of police activity in pursuing criminals.

    2. The police. Used with the.

  13. Slang Adverse comments or hostile criticism: Heat from the press forced the senator to resign.

  14. Slang A firearm, especially a pistol.

v.   heat·ed, heat·ing, heats

v.   tr.

  1. To make warm or hot.

  2. To excite the feelings of; inflame.

  3. To increase the molecular or kinetic energy of (an object).

v.   intr.

  1. To become warm or hot.

  2. To become excited emotionally or intellectually.

Phrasal Verb(s):
heat up Informal To become acute or intense: "If inflation heats up, interest rates could increase" (Christian Science Monitor).

[Middle English hete, from Old English hǣtu; see kai- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Cultural Dictionary

heat

In physics, a form of energy associated with the movement of atoms and molecules in any material. The higher the temperature of a material, the faster the atoms are moving, and hence the greater the amount of energy present as heat. (See infrared radiation.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang Dictionary
heat

  1. n.
    the heat the police. (Underworld.) : The heat is gonna catch up with you, Ernie.
  2. n.
    pressure. : The boss put some heat on Willy, and things are moving faster now.
  3. n.
    a gun; armaments. (Underworld. See also heater.) : Lefty has his heat on him at all times.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw Hill.
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Word Origin & History

heat 
O.E. hætu, hæto, from P.Gmc. *khaitin- "heat," from *khaitaz "hot" (cf. O.S. hittia, O.N. hiti, O.Fris. hete, Ger. hitze "heat," Goth. heito "fever"). The same root is the source of O.E. hat "hot" and hæða "hot weather." The verb is from O.E. hætan, from P.Gmc. *khaitijanam. Meaning "a single course in a race" is from 1663, perhaps from earlier fig. sense of "a single intense effort" (c.1380), or meaning "run given to a horse to prepare for a race" (1577). Meaning "sexual excitement in animals" is from 1768. Meaning "trouble with the police" attested by 1920. Heat wave "period of excessive hot weather" first attested 1893.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 1heat
Pronunciation: 'hEt
Function: intransitive verb
: to become warm or hot heat transitive senses
: tomake warm or hot

Main Entry: 2heat
Function: noun
1 a : the state of a body or of matter that is perceived as opposed to cold and is characterized by elevation oftemperature : a condition of being hot; especially : a marked or notable degree of this state : high temperature b (1) : a feverish state of the body : pathological excessive bodily temperature (as from inflammation) heat of an abscess> heat of the fever> (2) : a warm flushedcondition of the body (as after exercise) : a sensation produced by or like that produced by contact with or approach to heated matter c (1) : added energy that causessubstances to rise in temperature, fuse, evaporate, expand, or undergo any of various other related changes, that flows to a body by contact with or radiation from bodies at higher temperatures, andthat can be produced in a body (as by compression) (2) : the energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed
2 : sexual excitement especially in a female mammal; specifically : ESTRUS
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

heat (hēt)
n.

  1. A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.

  2. The sensation or perception of such energy as warmth or hotness.

  3. An abnormally high bodily temperature, as from a fever.

  4. Estrus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Idioms & Phrases

heat

In addition to the idioms beginning with heat, also see dead heat; in heat; in the heat of the moment; turn up the heat.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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