radiant heat

noun Thermodynamics.
heat energy transmitted by electromagnetic waves in contrast to heat transmitted by conduction or convection.

Origin:
1500–10

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
radiant heat
 
n
heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Radiant heat is always a great word to know.
So is callithumpian. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
Example sentences
Radiant heat in tiled areas and spray foam insulation for max energy efficiency.
Vegetation must be managed so as to reduce exposure of structures to flames and
  radiant heat during a wildfire.
The floor's radiant heat keeps the home toasty throughout the winter.
Each room has hardwood floors, marble bathrooms with radiant heat, towel
  warmers and plush bedding.
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