• synonyms

radiant heat

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noun Thermodynamics.
  1. heat energy transmitted by electromagnetic waves in contrast to heat transmitted by conduction or convection.
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Origin of radiant heat

First recorded in 1500–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for radiant heat

radiant heat

  1. heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012