Search Result for "infrared": 
Wordnet 3.0

NOUN (2)

1. the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range;
- Example: "they could sense radiation in the infrared"
[syn: infrared, infrared frequency]

2. electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves;
[syn: infrared, infrared light, infrared radiation, infrared emission]


ADJECTIVE (1)

1. having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end;
- Example: "infrared radiation"
- Example: "infrared photography"


The Collaborative International Dictionary of English v.0.48:

Infrared \In`fra*red"\, Infra-red \In`fra-red"\, a. [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]
WordNet (r) 3.0 (2006):

infrared adj 1: 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" n 1: the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared" [syn: infrared, infrared frequency] 2: electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves [syn: infrared, infrared light, infrared radiation, infrared emission]
The Free On-line Dictionary of Computing (18 March 2015):

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)