- 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)
- heat barrier,
- heat capacity,
- heat cramp,
- heat cramps,
- heat death
Origin of heat
Examples from the Web for heat
Remove from heat and stir in the walnuts, rum, powdered sugar, and salt until fully incorporated.
Heat the rum in a small skillet over medium until reduce by half.
Turn the heat down to 325°F and continue cooking until internal temperature reads 140°F on a thermometer.
While the pork is resting, heat a large, heavy-bottomed pan over medium-high heat.
Heat a large sauté pan over medium-high heat and add olive oil.
Let stand until morning in a warm place or in a covered bread pan well wrapped to retain the heat.Civic League Cook Book|Anonymous
They live only in the library, as the rest is so enormous to light and heat.Letters of a Diplomat's Wife|Mary King Waddington
Prior to the development of a quittor there is always swelling at the coronet, accompanied with heat and pain.Special Report on Diseases of the Horse|United States Department of Agriculture
It is from the sun of the natural world, and its heat and light.The Delights of Wisdom Pertaining to Conjugial Love|Emanuel Swedenborg
Along the coast of Algeria the heat is tempered by the sea breeze.The World and Its People: Book VII|Anna B. Badlam
- 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
Word Origin for heat
Old English hætu, hæto "heat, warmth; fervor ardor," from Proto-Germanic *haiti- "heat" (cf. Old Saxon hittia, Old Norse hiti, Old Frisian hete, German hitze "heat," Gothic heito "fever"), from PIE *kaid-, from root *kai- "heat." The same root is the source of Old English hat "hot" and hæða "hot weather" (see hot).
Meaning "a single course in a race," especially a horse race, is from 1660s, perhaps from earlier figurative sense of "violent action; a single intense effort" (late 14c.), or meaning "run given to a horse to prepare for a race" (1570s). This later expanded to "division of a race or contest when there are too many contestants to run at once," the winners of each heat then competing in a final race. 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 1890; earlier in reference to solar cycles.
Old English hætan "to heat; to become hot," from Proto-Germanic *haitijanam (see heat (n.)). Related: Heated (with many variants in Middle English); heating. Cf. Middle Dutch heeten, Dutch heten, German heizen "to 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.)
In addition to the idioms beginning with heat
- heat up
- dead heat
- in heat
- in the heat of the moment
- turn up the heat