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3 definitions found
From The Collaborative International Dictionary of English v.0.44 [gcide]:
Infrared \In'fra*red"\, Infra-red \In'fra-red"\, adjective [Infra- +
red.]
1. (Physics) Lying outside the visible spectrum at its red
end; -- said of rays having a longer wavelength (and thus
less refrangible) than the extreme red rays, specifically
those electromagnetic waves having a wavelength of between
700 nanometers and 1 millimeter.
[Webster 1913 Suppl. +PJC]
2. relating to, using, or producing infrared radiation.
[PJC]
3. affected by infrared radiation; as, infrared detector;
infrared film.
[PJC]
From WordNet (r) 2.0 [wn]:
infrared
adjective: having or employing wavelengths longer than light but
shorter than radio waves; lying outside the visible
spectrum at its red end; "infrared radiation";
"infrared photography"
noun
1: the infrared part of the electromagnetic spectrum;
electromagnetic wave frequencies below the visible
range; "they could sense radiation in the infrared"
[syn: {infrared frequency}]
2: electromagnetic radiation with wavelengths longer than
visible light but shorter than radio waves [syn: {infrared
light}, {infrared radiation}, {infrared emission}]
From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:
infrared
(IR) Electromagnetic waves in the frequency
range just below visible light corresponding to radiated heat.
IR waves can be generated by a kind of {LED} and are often
used for remote controls for televisions etc. and in some
{docking stations}.
(1997-01-30)
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