heat

v. become hot; make hot

n. warmth, high temperature; excitement, passion; early part of a race; state of being prepared for sexual activity (in female animals)

For other uses, see Heat (disambiguation) In physics, heat, symbolized by Q, is energy transferred from one body or system to another due to a difference in temperature. In thermodynamics, the quantity TdS is used as a representative measure of heat, which is the absolute temperature of an object multiplied by the differential quantity of a system's entropy measured at the boundary of the object. Heat can flow spontaneously from an object with a high temperature to an object with a lower temperature. The transfer of heat from an object, to another object with an equal or higher temperature, however, can happen only with the aid of a heat pump. High temperature bodies, which often result in high rates of heat transfer, can be created by chemical reactions (such as burning), nuclear reactions (such as fusion taking place inside the Sun), electromagnetic dissipation (as in electric stoves), or mechanical dissipation (such as friction). Heat can be transferred between objects by radiation, conduction and convection. Temperature is used as a measure of the internal energy or enthalpy, that is the level of elementary motion giving rise to heat transfer. Heat can only be transferred between objects, or areas within an object, with different temperatures (as given by the zeroth law of thermodynamics), and then, in the absence of work, only in the direction of the colder body (as per the second law of thermodynamics). The temperature and phase of a substance subject to heat transfer are determined by latent heat and heat capacity. A related term is thermal energy, loosely defined as the energy of a body that increases with its temperature.
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“HEAT” redirects here. For {#if: High explosive anti-tank (HEAT) rounds are made of an explosive shaped charge that uses the Neumann effect (a development of the Munroe effect) to create a very high-velocity jet of metal in a state of superplasticity that can punch through solid armor.The jet moves at hypersonic speeds (up to 25 times the speed of sound) in solid material and therefore erodes exclusively in the contact area of jet and armor material. Spacing is critical, as the jet disintegrates and disperses after a relatively short distance, usually well under 2 metres. The jet material is formed by a cone of metal foil lining, usually copper, though tin foil was common during the Second World War.
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Heat 1. the sensation of an increase in temperature. 2. the energy producing such a sensation; it exists in the form of molecular or atomic [more]Heat - Community and Resources

Noun
1. a form of energy that is transferred by a difference in temperature
(synonym) heat energy
(hypernym) energy
(hyponym) geothermal energy
(derivation) hot up, heat up
2. the presence of heat
(synonym) hotness, high temperature
(hypernym) temperature
(hyponym) calefaction, incalescence
(derivation) heat up
3. the sensation caused by heat energy
(synonym) warmth
(hypernym) temperature
(derivation) hot up, heat up
4. intense passion or emotion
(synonym) warmth, passion
(hypernym) emotionality, emotionalism
(derivation) inflame, stir up, wake, ignite, fire up
5. applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
(synonym) estrus, oestrus, rut
(hypernym) physiological state, physiological condition
6. a preliminary race in which the winner advances to a more important race
(hypernym) race
7. utility to warm a building; "the heating system wasn't working"; "they have radiant heating"
(synonym) heating system, heating plant, heating
(hypernym) utility
(hyponym) central heating
(part-holonym) building, edifice
(part-meronym) boiler, steam boiler
(derivation) hot up, heat up
Verb
1. make hot or hotter; "heat the soup"
(synonym) heat up
(antonym) cool, chill, cool down
(hypernym) change, alter, modify
(hyponym) toast, crisp
(cause) hot up, heat up
(derivation) warmth
2. provide with heat; "heat the house"
(hypernym) supply, provide, render, furnish
(hyponym) steam-heat
(derivation) heating system, heating plant, heating
3. arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred"
(synonym) inflame, stir up, wake, ignite, fire up
(hypernym) arouse, elicit, enkindle, kindle, evoke, fire, raise, provoke
(hyponym) ferment
(derivation) warmth, passion
4. gain heat or get hot; "The room heated up quickly"
(synonym) hot up, heat up
(antonym) cool, chill, cool down
(hypernym) change state, turn
(hyponym) overheat
(derivation) heating system, heating plant, heating

n. heat, warmth, high temperature