- a single course in or division of a race or other contest.
- a race or other contest in which competitors attempt to qualify for entry in the final race or contest.
- a single operation of heating, as of metal in a furnace, in the treating and melting of metals.
- a quantity of metal produced by such an operation.
- sexual receptiveness in animals, especially females.
- the period or duration of such receptiveness: to be in heat.
verb (used with object)
verb (used without object)
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Origin of heat
SYNONYMS FOR heat
OTHER WORDS FROM heat
Words nearby heat
British Dictionary definitions for heat up
- the energy transferred as a result of a difference in temperature
- the random kinetic energy of the atoms, molecules, or ions in a substance or body
- a preliminary eliminating contest in a competition
- a single section of a contest
- Also: in season (of some female mammals) sexually receptive
- in a state of sexual excitement
Derived forms of heatheatless, adjective
Word Origin for heat
Medical definitions for heat up
Scientific definitions for heat up
Cultural definitions for heat up
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.)
Idioms and Phrases with heat up (1 of 2)
Become acute or intense, as in If inflation heats up, the interest rate will surely rise, or The debate over the budget was heating up. [Early 1200s]
Idioms and Phrases with heat up (2 of 2)
In addition to the idioms beginning with heat
- heat up
- dead heat
- in heat
- in the heat of the moment
- turn up the heat