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heat

Objects that give off heat — or a feeling of warmth — include the sun, a radiator, and even your body. You can feel a marked difference in air temperature if you hold your hand near the heat of a candle flame, for example.

Heat can also mean the intensity of an emotion. In the heat of an argument, you need to watch what you say, because you may regret it later. The verb heat means to make something hot, like when you heat up last night's pizza to eat for lunch today. When things heat up, they become exciting or intense, the way thrilling chase scenes heat up your favorite action movie.

PRIMARY MEANINGS OF: heat

1
 nv
a form of energy that is transferred by a difference in temperature
make hot or hotter
2
 nv
the trait of being intensely emotional
arouse or excite feelings and passions
3
 n
a preliminary race in which the winner advances to a more important race
FULL DEFINITIONS OF: heat
1

n a form of energy that is transferred by a difference in temperature

Synonyms:
heat energy
Types:
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geothermal energy
energy derived from the heat in the interior of the earth
heat of dissociation
the heat required for a fluid substance to break up into simpler constituents
heat of formation
the heat evolved or absorbed during the formation of one mole of a substance from its component elements
heat of solution
the heat evolved or absorbed when one mole of a substance is dissolved in a large volume of a solvent
heat of transformation, latent heat
heat absorbed or radiated during a change of phase at a constant temperature and pressure
specific heat
the heat required to raise the temperature of one gram of a substance one degree centigrade
heat of condensation
heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid
heat of fusion
heat absorbed by a unit mass of a solid at its melting point in order to convert the solid into a liquid at the same temperature
heat of solidification
heat liberated by a unit mass of liquid at its freezing point when it solidifies
heat of sublimation
heat absorbed by a unit mass of material when it changes from a solid to a gaseous state
heat of vaporisation, heat of vaporization
heat absorbed by a unit mass of a material at its boiling point in order to convert the material into a gas at the same temperature
Type of:
energy, free energy
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs

n the sensation caused by heat energy

Synonyms:
warmth
Type of:
temperature
the somatic sensation of cold or heat

n the presence of heat

Synonyms:
high temperature, hotness
Antonyms:
cold, coldness, frigidity, frigidness, low temperature
the absence of heat
Types:
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calefaction, incalescence
the property of being warming
fieriness, red heat
the heat or the color of fire
torridity
extreme heat
warmness, warmth
the quality of having a moderate degree of heat
white heat
the hotness of something heated until it turns white
lukewarmness, tepidity, tepidness
a warmness resembling the temperature of the skin
Type of:
temperature
the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)

n utility to warm a building

Synonyms:
heating, heating plant, heating system
Types:
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central heating
a heating system in which air or water is heated at a central furnace and sent through the building via vents or pipes and radiators
gas heat
heating system that burns natural gas
panel heating
heating system consisting of wall or floor or baseboard or ceiling panels containing electric conductors or heating pipes
steam heat, steam heating
a heating system in which steam is generated in boilers and piped to radiators
Type of:
utility
a facility composed of one or more pieces of equipment connected to or part of a structure and designed to provide a service such as heat or electricity or water or sewage disposal

v make hot or hotter

“the sun heats the oceans”
“heat the water on the stove”
Synonyms:
heat up
Antonyms:
chill, cool, cool down
make cool or cooler
Types:
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crisp, crispen, toast
make brown and crisp by heating
scald
heat to the boiling point
soak
heat a metal prior to working it
calcine
heat a substance so that it oxidizes or reduces
preheat
heat beforehand
overheat
make excessively or undesirably hot
scorch, sear
make very hot and dry
bake, broil
heat by a natural force
reheat
heat again
sizzle
burn or sear with a sizzling sound
Type of:
alter, change, modify
cause to change; make different; cause a transformation

v provide with heat

“heat the house”
Types:
steam-heat
heat by means of steam
Type of:
furnish, provide, render, supply
give something useful or necessary to

v gain heat or get hot

“The room heated up quickly”
Synonyms:
heat up, hot up
Antonyms:
chill, cool, cool down
loose heat
Types:
overheat
get excessively and undesirably hot
fry
be excessively hot
Type of:
change state, turn
undergo a transformation or a change of position or action
2

n the trait of being intensely emotional

Synonyms:
passion, warmth
Types:
fieriness
a passionate and quick-tempered nature
Type of:
emotionalism, emotionality
emotional nature or quality

n applies to nonhuman mammals: a state or period of heightened sexual arousal and activity

Synonyms:
estrus, oestrus, rut
Antonyms:
anestrum, anestrus, anoestrum, anoestrus
applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus
Type of:
physical condition, physiological condition, physiological state
the condition or state of the body or bodily functions

v arouse or excite feelings and passions

Synonyms:
fire up, ignite, inflame, stir up, wake
Types:
ferment
work up into agitation or excitement
Type of:
arouse, elicit, enkindle, evoke, fire, kindle, provoke, raise
call forth (emotions, feelings, and responses)
3

n a preliminary race in which the winner advances to a more important race

Type of:
race
a contest of speed
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