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• noun
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• antonym

• British thermal unit (noun)
  1. a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories
• solar thermal system (noun)
  1. a system that converts sunlight into heat
• thermal barrier (noun)
  1. a limit to high speed flight imposed by aerodynamic heating
• thermal emission (noun)
  1. the emission of electrons from very hot substances
• thermal equilibrium (noun)
  1. a state in which all parts of a system are at the same temperature
• thermal pollution (noun)
  1. harm to lakes and rivers resulting from the release of excessive waste heat into them
• thermal printer (noun)
  1. a printer that produces characters by applying heat to special paper that is sensitive to heat
• thermal reactor (noun)
  1. a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderator
• thermal resistor (noun)
  1. a semiconductor device made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit
• thermal spring (noun)
  1. a natural spring of water at a temperature of 70 F or above
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