infrared

in·fra·red   (ĭn'frə-rěd')    adj.   Abbr. IR Of or relating to the range of invisible radiation wavelengths from about 750 nanometers, just longer than red in the visible spectrum, to 1 millimeter, on the border of the microwave region. Generating, using, or sensitive to infrared radiation. n.  Infrared light or the infrared part of the spectrum.

Main Entry: ¹in·fra·red
Pronunciation: "in-fr&-'red
Function: adjective
1 : lying outside the visible spectrum at itsred end —used of radiation having a wavelength between about 700 nanometers and 1 millimeter
2 : relating to, producing, or employing infrared radiation <infraredtherapy>

infrared in·fra·red (ĭn'frə-rěd')
adj.

1. Of or relating to the range of invisible radiation wavelengths from about 750 nanometers, just longer than red in the visible spectrum, to 1 millimeter, on the border of the microwave region.

2. Generating, using, or sensitive to infrared radiation.

n.
Infrared light or the infrared part of the spectrum.

infrared electronics
(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)