Source : WordNet®

infrared
     adj : 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"

infrared
     n 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}]

Source : Free On-Line Dictionary of Computing

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)