infrared

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in·fra·red

 (ĭn′frə-rĕd′)
adj. Abbr. IR
1. Of or relating to electromagnetic radiation between microwaves and red visible light in the electromagnetic spectrum, having frequencies between 300 gigahertz and 400 terahertz and wavelengths between 1 millimeter and 750 nanometers.
2. Generating, using, or sensitive to infrared radiation.
n.
Infrared light or the infrared part of the spectrum.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

infrared

(ˌɪnfrəˈrɛd)
n
(General Physics) the part of the electromagnetic spectrum with a longer wavelength than light but a shorter wavelength than radio waves; radiation with wavelength between 0.8 micrometres and 1 millimetre
adj
(General Physics) of, relating to, using, or consisting of radiation lying within the infrared: infrared radiation.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

in`fra•red′

or in`fra-red′,



n.
1. the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nm to 1 mm.
adj.
2. of, pertaining to, or using the infrared or its component rays: infrared radiation. Compare ultraviolet.
[1825–35]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

in·fra·red

(ĭn′frə-rĕd′)
Relating to the invisible part of the electromagnetic spectrum with wavelengths longer than those of visible red light but shorter than those of microwaves. See more at electromagnetic spectrum.
Did You Know? In 1800 the astronomer Sir William Herschel discovered infrared light when he was exploring the relationship between heat and light. Herschel used a prism to split a beam of sunlight into a rainbow of colors (red, orange, yellow, green, blue, indigo, and violet) and measured how hot a thermometer got when it was placed in each of the various bands. Then he tried placing the thermometer just outside the red band, where there was no visible color at all. The thermometer heated up, just as if light were shining on it. Further experiments showed that this invisible form of light behaved just like visible light in many ways; for example, it could be reflected by a mirror. We now call this form of light infrared light. Another kind of invisible light, ultraviolet light, is found just beyond the violet end of the spectrum.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.infrared - the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared"
infrared spectrum - the spectrum of infrared radiation
frequence, frequency, oftenness - the number of occurrences within a given time period; "the frequency of modulation was 40 cycles per second"; "the frequency of his seizures increased as he grew older"
2.infrared - electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
actinic radiation, actinic ray - electromagnetic radiation that can produce photochemical reactions
Adj.1.infrared - 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"
invisible, unseeable - impossible or nearly impossible to see; imperceptible by the eye; "the invisible man"; "invisible rays"; "an invisible hinge"; "invisible mending"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
infraroig
infračervený
infrarødinfrarød stråling
infrapuna
적외선
infrarødinfrarød stråling
infravermelho
infrarödinfraröd strålning

infrared

[ˈɪnfrəˈred] ADJ [rays, light] → infrarrojo
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

infrared

infra-red [ˌɪnfrəˈrɛd] adj
[light, radiation] → infrarouge
[equipment, sensor] → infrarouge; [camera] → infrarouge
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

infrared

adjinfrarot
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

infrared

[ˌɪnfrəˈrɛd]
1. adjinfrarosso/a
2. n (raggio) → infrarosso
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

infrared

adj infrarrojo
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
The company offers dedicated broadband hyperspectral LED illumination, in both the visible to near-infrared, 400nm to 1,000nm, and the shortwave infared (SWIR), 1,000nm to 1,700nm.
Camera and video show, 'Ready, Set, Go!' - playing four times a day in the third-floor Wonderlab Studio - has been captivating youngsters with demonstrations of infared, thermal imaging and slow motion technology.
Between May and July 2015, the FBI documents claim, Sujan was "involved in the purchase of, and communication about, multiple pieces of FLIR (Forward Looking Infared)capable, pan-tilt mounted units from a company in Canada selling military-grade surveillance equipment.
Between May and July 2015, the FBI documents claim, Sujan was "involved in the purchase of, and communication about, multiple pieces of FLIR (Forward Looking Infared) capable, pan-tilt mounted units from a company in Canada selling military-grade surveillance equipment.
"All the Way Up" 6 Fat Joe & Remy Ma Featuring French Montana & Infared
There are lots of ways to prevent your home from losing heat - you could use an infared thermal camera to see where it's being lost
Rapid assessment of nitrogen concentration of two bio-energy feedstock grasses using near infared reflectance spectroscopy.
Zhang, "Temperature prediction of yam under infared drying based on neural networks," Transaction of the Chinese Society for Agricultural Machinery, vol.
Rapid determination of isolated trans geometric isomers in fats and oils by attenuated total reflection infared spectroscopy.