heat

1 of 2

verb

heated; heating; heats

intransitive verb

1
: to become warm or hot
water heating in a kettle
2
: to start to spoil from heat

transitive verb

1
: to make warm or hot
heat a can of soup
heat the oven to 350 degrees
2
: excite
were heated by his stirring words
heatable adjective

heat

2 of 2

noun

1
a(1)
: a condition of being hot : warmth
snow melting in the heat of the sun
(2)
: a marked or notable degree of hotness
The heat was intense.
b
: pathological excessive bodily temperature
the heat of the fever
c
: a hot place or situation
get out of the heat
d(1)
: a period of heat
an unbroken heat
(2)
: a single complete operation of making something warm or hot
also : the quantity of material so heated
e(1)
physics : added energy that causes substances 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, and that can be produced in a body (as by compression)
(2)
physics : the energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed
f
: appearance, condition, or color of something as indicating its temperature
when the rod is at the proper welding heat
2
a
: intensity of feeling or reaction : passion
answered with considerable heat
b
: the height or stress of an action or condition
in the heat of battle
c
: sexual excitement especially in a female mammal
like an animal in heat
specifically : estrus
3
: a single continuous effort: such as
a
: a single round of a contest (such as a race) having two or more rounds for each contestant
won two heats out of three
b
: one of several preliminary contests held to eliminate less competent contenders
won the second heat but finished third in the final race
4
: pungency of flavor
Add some cayenne pepper for extra heat.
5
a slang
(1)
: the intensification of law-enforcement activity or investigation
waited until the heat was off
(2)
: police
b
: pressure, coercion
turn up the heat on your congressperson
c
: abuse, criticism
took heat for her mistakes
6
baseball : smoke sense 8
throwing some heat
7
slang : gun sense 1b
was packing heat
heatless adjective
heatproof adjective

Examples of heat in a Sentence

Verb I heated the vegetables in the microwave. They heat their house with a wood stove. Noun The sun's heat melted the snow. the intense heat of a fire She applied heat to the sore muscles in her leg. a period of high heat and humidity The crops were damaged by drought and extreme heat. Cook the milk over low heat. Remove the pan from the heat.
Recent Examples on the Web
Verb
The hearing became particularly heated when Rep. Elise Stefanik, R-N.Y., pressed Shafik about why Massad is still listed on Columbia’s website as the chair of the academic review committee. Emi Tuyetnhi Tran, NBC News, 17 Apr. 2024 In Milwaukee, the challenge of energy affordability is felt most keenly in the majority Black neighborhoods north of North Avenue between North 35th and North Holton streets, who on average pay 7% to 9% of their monthly income to heat their homes and keep the lights on. Karl Ebert, Journal Sentinel, 16 Apr. 2024 Nearly a year later, the video is going viral for a second time after the official Transportation Security Administration (TSA) account reshared it on their Instagram on April 4 — leading devoted players of the game to get heated all over again. Natalia Senanayake, Peoplemag, 16 Apr. 2024 Here the brand nerds out with the science of lightweight titanium and the chemical reactions that occur when the metal is heated, a meticulous treatment called thermal oxidation. Cait Bazemore, Robb Report, 10 Apr. 2024 Truth or myth: Have all of your ingredients prepared and your cooking oil heated before starting to cook. Julia Moskin, New York Times, 8 Apr. 2024 Along with losing that affordable supply of gas needed to heat homes, generate electricity and power factories, the rebound from the pandemic also strained supply chains, helping push up inflation. David McHugh, Quartz, 3 Apr. 2024 In addition, the yacht will be equipped with an innovative heat recovery system that uses the thermal energy from the generators to heat the water in the pools, the water boilers, and the deck washing system to further reduce fuel consumption. Rachel Cormack, Robb Report, 5 Apr. 2024 And some farmers are using massive black or white tarps to heat or cool the soils in which wild bees live, Hopkins said. Tribune News Service, The Mercury News, 2 Apr. 2024
Noun
While carbon dioxide is the most prevalent greenhouse gas in the atmosphere, methane is far more potent — nearly 30 times as effective as carbon dioxide at trapping heat, according to the EPA. Nicole Blanchard, Idaho Statesman, 9 Apr. 2024 That’s because iron-rich meteorites are good at conducting heat. Katherine Kornei, New York Times, 8 Apr. 2024 One crisis—burned loaves—had been averted by another: the oven didn’t seem to be producing nearly enough heat. Hannah Goldfield, The New Yorker, 8 Apr. 2024 Suitable in the oven or over a grill, stove, and even a campfire, the pre-seasoned skillet retains and evenly distributes heat to do everything from sear steaks to bake fluffy cakes. Isabel Garcia, Peoplemag, 7 Apr. 2024 Without the summer heat, Venice and its lagoon offer truly extraordinary sights and natural spectacles. Maddalena Fossati, Condé Nast Traveler, 6 Apr. 2024 But heat protection is crucial for the dangerous return home. Jackie Wattles, CNN, 5 Apr. 2024 But there are others, such as the termite killing gas sulfuryl fluoride, and it has been found to be 4,800 times more potent than carbon dioxide in trapping heat. Ian James, Los Angeles Times, 4 Apr. 2024 All the research in the world will not boost coral heat tolerance enough to cope with oceans that continue warming. Ashley Miznazi, Miami Herald, 28 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'heat.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Verb

Middle English heten, going back to Old English hǣtan, going back to Germanic *haitjan- (whence also Middle Dutch hēten "to make warm," Old High German heizen, Old Norse heita "to make hot, brew"), derivative of *haita- "having a high temperature, burning" — more at hot entry 1

Noun

Middle English hete, going back to Old English hǣtu, going back to Germanic *haitīn- (whence also Old Frisian hēte "high temperature, heat," Old High German heizi), noun derivative from *haita- "having a high temperature, burning" — more at hot entry 1

First Known Use

Verb

before the 12th century, in the meaning defined at intransitive sense 1

Noun

before the 12th century, in the meaning defined at sense 1a(1)

Time Traveler
The first known use of heat was before the 12th century

Dictionary Entries Near heat

Cite this Entry

“Heat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat. Accessed 23 Apr. 2024.

Kids Definition

heat

1 of 2 verb
1
: to make or become warm or hot
2
: to make excited

heat

2 of 2 noun
1
a
: a condition of being hot : warmth
b
: a high degree of hotness
c
: a hot place or period
the heat of the day
d
: a form of energy that causes substances to rise in temperature or to go through associated changes (as melting, evaporation, or expansion)
2
a
: strength of feeling
answered with some heat
b
: the height of an action or condition
the heat of battle
3
: a single race in a contest made up of two or more races
heatless adjective
heatproof adjective

Medical Definition

heat

1 of 2 intransitive verb
: to become warm or hot

transitive verb

: to make warm or hot

heat

2 of 2 noun
1
a
: the state of a body or of matter that is perceived as opposed to cold and is characterized by elevation of temperature : 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)
knew the throbbing heat of an abscess
the heat of the fever
(2)
: a warm flushed condition 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 causes substances 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, and that 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

More from Merriam-Webster on heat

Last Updated: - Updated example sentences
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