heat : Idioms & Phrases

• (Physiol.), the heat generated in the body of a living animal, by means of which the animal is kept at nearly a uniform temperature.

Webster 1913

• etc. See under Animal, Blood, etc.

Webster 1913

• (Chem.), the product obtained by multiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4.

Webster 1913

• noun temperature of the body; normally 98.6 F or 37 C in humans; usually measured to obtain a quick evaluation of a person's health
  body temperature.
  

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• heat equal to the temperature of human blood, or about 98½ ° Fahr.

Webster 1913

• the power of absorbing heat. Substances differ in the amount of heat requisite to raise them a given number of thermometric degrees, and this difference is the measure of, or depends upon, whzt is called their capacity for heat. See Specific heat, under Heat.

Webster 1913

• noun 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
  

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• noun a tie in a race
  

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• a heat or course between two or more race horses, boats, etc., in which they come out exactly equal, so that neither wins.

Webster 1913

• noun heating of an insulator by a high-frequency electric field
  

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• that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter.

Webster 1913

• the ratio of the work done an engine, to the work due to the heat supplied to it.

Webster 1913

Flat"-heat`ed adjective

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1. Having a head with a flattened top; as, a flat-headed nail.

Webster 1913

• noun heating system that burns natural gas
  

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• noun a limit to high speed flight imposed by aerodynamic heating
  thermal barrier.
  

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• noun (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
  H; heat content; enthalpy.
  
  • enthalpy is the amount of energy in a system capable of doing mechanical work

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• noun dissipation of heat
  

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• noun a form of energy that is transferred by a difference in temperature
  heat.
  

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• noun any engine that makes use of heat to do work
  

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• any apparatus by which a heated substance, as a heated fluid, is made to perform work by giving motion to mechanism, as a hot-air engine, or a steam engine.

Webster 1913

• noun device that transfers heat from one liquid to another without allowing them to mix
  

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• noun a condition marked by dizziness and nausea and weakness caused by depletion of body fluids and electrolytes
  heat exhaustion.
  

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• noun a flash of intense heat (as released by an atomic explosion)
  

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• noun collapse caused by exposure to excessive heat
  heatstroke.
  

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• noun electric heater consisting of a high-power incandescent lamp that emits infrared radiation
  infrared lamp.
  
  • the bathroom could be warmed by an infrared lamp

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• noun bright flashes of light near the horizon without thunder (especially on hot evenings); usually attributed to distant lightning that is reflected by clouds
  

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• noun heat liberated by a unit mass of gas at its boiling point as it condenses into a liquid
  
  • the heat of condensation is equal to the heat of vaporization

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• noun the heat required for a fluid substance to break up into simpler constituents
  

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• noun the heat evolved or absorbed during the formation of one mole of a substance from its component elements
  

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• noun 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
  
  • the heat of fusion is equal to the heat of solidification

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• noun heat liberated by a unit mass of liquid at its freezing point when it solidifies
  

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• noun the heat evolved or absorbed when one mole of a substance is dissolved in a large volume of a solvent
  

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• noun heat absorbed by a unit mass of material when it changes from a solid to a gaseous state
  

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• noun heat absorbed or radiated during a change of phase at a constant temperature and pressure
  heat of transformation.
  

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• noun 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
  heat of vaporisation.
  

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• noun 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
  heat of vaporisation.
  

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• . (Physiol.) See under Food.

Webster 1913

• noun a condition marked by dizziness and nausea and weakness caused by depletion of body fluids and electrolytes
  heat exhaustion.
  

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• noun apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building
  

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• noun obstruction of the sweat ducts during high heat and humidity
  heat rash; miliaria.
  

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• noun a ray that produces a thermal effect
  heat ray.
  

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• noun a ray that produces a thermal effect
  heat ray.
  

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• a term formerly applied to the rays near the red end of the spectrum, whether within or beyond the visible spectrum.

Webster 1913

• noun a protective covering that protects a spacecraft from overheating on reentry
  

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• noun a metal conductor specially designed to conduct (and radiate) heat
  

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• noun a unit of measurement for work
  work unit; energy unit.
  

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• verb gain heat or get hot
  heat; hot up.
  
  • The room heated up quickly
• verb make hot or hotter
  heat.
  
  • the sun heats the oceans
  • heat the water on the stove
• verb make more intense
  screw up; hot up.
  
  • Emotions were screwed up

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• noun a wave of unusually hot weather
  

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• (Mech.), the product of any quantity of heat by the mechanical equivalent of heat divided by the absolute temperature; called also thermodynamic function, and entropy.

Webster 1913

• adjective (of a chemical reaction or compound) occurring or formed with absorption of heat
  endothermic; endothermal.
  

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• adjective (of a chemical reaction or compound) occurring or formed with the liberation of heat
  exothermic; exothermal.
  

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• noun a missile with a guidance system that directs it toward targets emitting infrared radiation (as the emissions of a jet engine)
  

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• adjective satellite made warm or hot (`het' is a dialectal variant of `heated')
  het; het up; heated.
  
  • a heated swimming pool
  • wiped his heated-up face with a large bandana
  • he was all het up and sweaty

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• noun the component of a heater or range that transforms fuel or electricity into heat
  

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• noun a petroleum product used for fuel
  fuel oil.
  

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• noun heater consisting of electrical heating elements contained in a flexible pad
  hot pad.
  

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• noun utility to warm a building
  heat; heating plant; heating.
  
  • the heating system wasn't working
  • they have radiant heating

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• noun utility to warm a building
  heat; heating plant; heating.
  
  • the heating system wasn't working
  • they have radiant heating

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• noun the heating of a conducting material caused by an electric current induced in it
  

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• noun a theory that the temperature of a body increases when kinetic energy increases
  

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• noun heat absorbed or radiated during a change of phase at a constant temperature and pressure
  heat of transformation.
  

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• (Physics), that quantity of heat which disappears or becomes concealed in a body while producing some change in it other than rise of temperature, as fusion, evaporation, or expansion, the quantity being constant for each particular body and for each species of change.

Webster 1913

• (Physics), the number of units of work which the unit of heat can perform; the mechanical energy which must be expended to raise the temperature of a unit weight of water from 0° C. to 1° C., or from 32° F. to 33° F. The term was introduced by Dr. Mayer of Heilbronn. Its value was found by Joule to be 1390 foot pounds upon the Centigrade, or 772 foot pounds upon the Fahrenheit, thermometric scale, whence it is often called Joule's equivalent, and represented by the symbol J. This is equal to 424 kilogram meters (Centigrade scale). A more recent determination by Professor Rowland gives the value 426.9 kilogram meters, for the latitude of Baltimore.

Webster 1913

• noun heating system consisting of wall or floor or baseboard or ceiling panels containing electric conductors or heating pipes
  

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• noun obstruction of the sweat ducts during high heat and humidity
  heat rash; miliaria.
  

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• (Med.), a noncontagious cutaneous eruption of red pimples, attended with intense itching and tingling of the parts affected. It is due to inflammation of the sweat glands, and is often brought on by overheating the skin in hot weather.

Webster 1913

• proceeding in right lines, or directly from the heated body, after the manner of light, in distinction from heat conducted or carried by intervening media.

Webster 1913

• noun heating a building by radiation from panels containing hot water or electrical heaters
  

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• noun the heat or the color of fire
  fieriness.
  

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• noun the heat required to raise the temperature of one gram of a substance one degree centigrade
  

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• (Physics), the quantity of heat required to raise temperature of a body one degree, taking as the unit of measure the quantity required to raise the same weight of water from zero to one degree; thus, the specific heat of mercury is 0.033, that of water being 1.000.

Webster 1913

• (at any temperature), the number of units of heat required to raise the temperature of a unit mass of the substance at that temperature one degree.

Webster 1913

• noun a heating system in which steam is generated in boilers and piped to radiators
  steam heat.
  

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• noun a heating system in which steam is generated in boilers and piped to radiators
  steam heat.
  

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• verb heat by means of steam
  

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• noun (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
  H; heat content; enthalpy.
  
  • enthalpy is the amount of energy in a system capable of doing mechanical work

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• verb apply great or increased pressure
  turn up the pressure.
  
  • The Democrats turned up the heat on their candidate to concede the election

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• (Physics), a determinate quantity of heat adopted as a unit of measure; a thermal unit (see under Thermal). Water is the substance generally employed, the unit being one gram or one pound, and the temperature interval one degree of the Centigrade or Fahrenheit scale. When referred to the gram, it is called the gram degree. The British unit of heat, or thermal unit, used by engineers in England and in the United States, is the quantity of heat necessary to raise one pound of pure water at and near its temperature of greatest density (39.1° Fahr.) through one degree of the Fahrenheit scale. Rankine.
• the quantity of heat required to raise, by one degree, the temperature of a unit mass of water, initially at a certain standard temperature. The temperature usually employed is that of 0° Centigrade, or 32° Fahrenheit.

Webster 1913

• noun the hotness of something heated until it turns white
  

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• the temperature at which bodies become incandescent, and appear white from the bright light which they emit.

Webster 1913