| heat | | |
| n. (phenomenon) | 1. heat, heat energy | a form of energy that is transferred by a difference in temperature. |
| ~ 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.; "energy can take a wide variety of forms" |
| ~ 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. |
| n. (attribute) | 2. heat, high temperature, hotness | the presence of heat. |
| ~ temperature | the degree of hotness or coldness of a body or environment (corresponding to its molecular activity). |
| ~ 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.; "an agreeable warmth in the house" |
| ~ white heat | the hotness of something heated until it turns white. |
| n. (cognition) | 3. heat, warmth | the sensation caused by heat energy. |
| ~ temperature | the somatic sensation of cold or heat. |
| n. (attribute) | 4. heat, passion, warmth | the trait of being intensely emotional. |
| ~ emotionalism, emotionality | emotional nature or quality. |
| ~ fieriness | a passionate and quick-tempered nature. |
| n. (state) | 5. estrus, heat, oestrus, rut | applies to nonhuman mammals: a state or period of heightened sexual arousal and activity. |
| ~ physical condition, physiological condition, physiological state | the condition or state of the body or bodily functions. |
| n. (event) | 6. heat | a preliminary race in which the winner advances to a more important race. |
| ~ race | a contest of speed.; "the race is to the swift" |
| n. (artifact) | 7. heat, heating, heating plant, heating system | utility to warm a building.; "the heating system wasn't working"; "they have radiant heating" |
| ~ boiler, steam boiler | sealed vessel where water is converted to steam. |
| ~ building, edifice | a structure that has a roof and walls and stands more or less permanently in one place.; "there was a three-story building on the corner"; "it was an imposing edifice" |
| ~ 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. |
| ~ radiator | heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings. |
| ~ steam heat, steam heating | a heating system in which steam is generated in boilers and piped to radiators. |
| ~ 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.; "the price of the house included all utilities" |
| v. (change) | 8. heat, heat up | make hot or hotter.; "the sun heats the oceans"; "heat the water on the stove" |
| ~ alter, change, modify | cause to change; make different; cause a transformation.; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue" |
| ~ crispen, toast, crisp | make brown and crisp by heating.; "toast bread"; "crisp potatoes" |
| ~ scald | heat to the boiling point.; "scald the milk" |
| ~ soak | heat a metal prior to working it. |
| ~ calcine | heat a substance so that it oxidizes or reduces. |
| ~ preheat | heat beforehand.; "Preheat the oven!" |
| ~ overheat | make excessively or undesirably hot.; "The room was overheated" |
| ~ heat up, hot up, heat | gain heat or get hot.; "The room heated up quickly" |
| ~ scorch, sear | make very hot and dry.; "The heat scorched the countryside" |
| ~ broil, bake | heat by a natural force.; "The sun broils the valley in the summer" |
| ~ reheat | heat again.; "Please reheat the food from last night" |
| v. (possession) | 9. heat | provide with heat.; "heat the house" |
| ~ furnish, provide, supply, render | give something useful or necessary to.; "We provided the room with an electrical heater" |
| ~ steam-heat | heat by means of steam. |
| v. (emotion) | 10. fire up, heat, ignite, inflame, stir up, wake | 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" |
| ~ arouse, elicit, evoke, provoke, enkindle, kindle, fire, raise | call forth (emotions, feelings, and responses).; "arouse pity"; "raise a smile"; "evoke sympathy" |
| ~ ferment | work up into agitation or excitement.; "Islam is fermenting Africa" |
| v. (change) | 11. heat, heat up, hot up | gain heat or get hot.; "The room heated up quickly" |
| ~ change state, turn | undergo a transformation or a change of position or action.; "We turned from Socialism to Capitalism"; "The people turned against the President when he stole the election" |
| ~ overheat | get excessively and undesirably hot.; "The car engines overheated" |
| ~ fry | be excessively hot.; "If the children stay out on the beach for another hour, they'll be fried" |
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