radiant heat

American  

noun

Thermodynamics.

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

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radiant heat British  

noun

1. heat transferred in the form of electromagnetic radiation rather than by conduction or convection; infrared radiation

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Etymology

Origin of radiant heat

First recorded in 1500–10

Example Sentences

See Examples For:

radiant heat

This includes people employed in construction and agriculture as well as those who work in indoor environments with radiant heat and no air conditioning, such as pizza kitchens.

From MarketWatch ● Jun. 30, 2026

It measures not just the air temperature but takes into account humidity, radiant heat from the sun and the court surface temperature.

From BBC ● Jun. 28, 2026

“A hydrated plant is absorbing radiant heat up until the point of ignition, and then it’s part of the progression of the fire,” said Moritz.

From Los Angeles Times ● Nov. 3, 2025

I responded: “I don’t want any air space. Put the insulation in direct contact with the radiant heat tubes and do whatever is necessary to ensure it never falls down.”

From Seattle Times ● Jan. 25, 2024

Rock salt is one of the best non-absorbents of radiant heat, allowing nearly the whole of the rays of heat to pass through unobstructed.

From Lectures on Ventilation Being a Course Delivered in the Franklin Institute of Philadelphia by Lewis W. Leeds