far-infrared
adjective
far-in·fra·red
ˈfär-ˌin-frə-ˈred 
: of or relating to the longer wavelengths of radiation in the infrared spectrum and especially to those between 10 and 1000 micrometers
Examples of far-infrared in a Sentence
Recent Examples on the Web
But while the original Sunflower used a flatter, simpler radiant burner, the X relies on a 3-dimensional metal-mesh burner to transform flame energy into far-infrared radiation.
—
New Atlas,
16 Oct. 2025
Similarly, the Sun is less energetic at near-infrared wavelengths than visible light wavelengths, and continues to decline through the mid-infrared, far-infrared, microwave, and radio sets of wavelengths.
—
Ethan Siegel,
Big Think,
4 Sep. 2025
An array of two dozen sensors integrates stereoscopic 3-D cameras with near- and far-infrared cameras, ultrasonic sensors, and short-, mid-, and long-range radar, wrapping the Benz in a 360-degree cocoon of sensory awareness.
—
IEEE Spectrum,
28 Mar. 2014
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New Atlas,
16 Oct. 2025
Similarly, the Sun is less energetic at near-infrared wavelengths than visible light wavelengths, and continues to decline through the mid-infrared, far-infrared, microwave, and radio sets of wavelengths.
—
Ethan Siegel,
Big Think,
4 Sep. 2025
An array of two dozen sensors integrates stereoscopic 3-D cameras with near- and far-infrared cameras, ultrasonic sensors, and short-, mid-, and long-range radar, wrapping the Benz in a 360-degree cocoon of sensory awareness.
—
IEEE Spectrum,
28 Mar. 2014
Cite this Entry
“Far-infrared.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/far-infrared. Accessed 2 Jul. 2026.
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