Lexic.us

Definition of Infrared

1. Noun. The infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range. "They could sense radiation in the infrared"

2. Adjective. Having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end. "Infrared photography"

3. Noun. Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.

Definition of Infrared

1. a. Lying outside the visible spectrum at its red end; -- said of rays less refrangible than the extreme red rays.

Definition of Infrared

1. Noun. electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm ¹

2. Adjective. Having the wavelength in the infrared. ¹

3. Adjective. In the infrared spectrum. ¹

¹ Source: wiktionary.com

Definition of Infrared

1. a part of the invisible spectrum [n -S]

Medical Definition of Infrared

1. That portion of the electromagnetic spectrum with wavelengths between 770 and 1000 nm. (05 Mar 2000)

Lexicographical Neighbors of Infrared

infraorder infraorders infrapalpebral sulcus infraparticle infraparticles infrapatellar infrapatellar branch of saphenous nerve infrapatellar fat-pad infrapatellar fat body infrapatellar synovial fold

infraphyla infraphylum infraposition infrapsychic infrarealism infrared (current term) infrared astronomy infrared cataract infrared emission infrared frequency

infrared lamp infrared light infrared microscope infrared radiation infrared ray infrared rays infrared spectroscopy infrared spectrum infrared therapy infrared thermography

Literary usage of Infrared

Below you will find example usage of this term as found in modern and/or classical literature:

1. Volcanic Ash and Aviation Safety: Proceedings of the First International edited by T. J. Casadevall (1995)
"There were no measurements of the infrared properties of this particular aerosol. ... The tropical lower stratosphere is normally heated by infrared ..."

2. Permafrost: North American Contribution [to The] Second International by Building Research Advisory Board Staff (1973)
"It was recognized by the authors at the outset of this research that, to detect massive ice in permafrost by airborne infrared (IR) means, ..."

3. Science by American Association for the Advancement of Science (1883)
"This problem of object-to-background contrast does not affect thermal infrared imagery. The oil-covered areas show up clearly and distinctly in Fig. ..."

Other Resources: