heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation
radiant heat in American English
noun
Thermodynamics
heat energy transmitted by electromagnetic waves in contrast to heat transmitted by conduction or convection
Word origin
[1500–10]This word is first recorded in the period 1500–10. Other words that entered Englishat around the same time include: arsenal, intelligent, lowland, reflex, satire
Examples of 'radiant heat' in a sentence
radiant heat
I feel the radiant heat burning the back of my hand.
Times, Sunday Times (2009)
He turned the studio into a sunlit great room and installed new mechanical systems, an elevator, radiant heat and central air.
Globe and Mail (2003)
Traditional saunas warm the air with radiant heat from coals, which, in turn, heats your body.