Infrared Definition
ĭnfrə-rĕd
adjective
Designating or of those invisible rays just beyond the red end of the visible spectrum: their waves are longer than those of the spectrum colors but shorter than radio waves, and have a penetrating heating effect: used in cooking, photography, etc.
Webster's New World
Generating, using, or sensitive to infrared radiation.
American Heritage
noun
Electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm.
Wiktionary
Infrared light or the infrared part of the spectrum.
American Heritage
Synonyms:
- infrared emission
- infrared-radiation
- infrared light
- infrared frequency
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