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 ?
Previous work has shown that the cloud-top reflectance in the near-infrared increases in middle-latitude, deep-convective overshooting tops--the overshooting tops appear lighter than the surrounding glaciated clouds due to smaller ice crystals (2-4 [micro]m in effective radius), which are frozen nearly instantaneously in intense thunderstorm updrafts.
It works in tandem with the Canvas Imaging System, which detects near-infrared light in the operating room.
The new camera structure mimics that of a morpho butterfly's eye, which features nanostructures that allow it to detect multispectral images, including those in the near-infrared. Gruev's team therefore used the same kinds of nanostructures in their own camera design, allowing them to create a small, low-cost device capable of registering images simultaneously in both regular colour and the near-infrared, without needing to dim lights in the vicinity.
Transcranial near-infrared (NIR) light passes through the skull and stimulates cytochrome c oxidase within the mitochondria, which increases energy production and is anti-inflammatory.
As Zhang explained, near-infrared light can penetrate three to four cm beyond the skin to deep tissue, much deeper than visible light.
With the child supine, a miniature spatially resolved NRIS (SR-NIRS) device (PortaMon, Artinis, The Netherlands) was placed over each spermatic cord in turn with the near-infrared light emitter array and photodiode detector apposed to the skin over the cord.
However, it is impossible to measure the amount of dust and gas in the densest part of the disk by near-infrared observations.
This guide is oriented toward practical information for solving analytical problems, rather than attempting more detailed coverage of the theory of near-infrared vibrational spectroscopy.
"The results open up new opportunities to develop non-invasive near-infrared fluorescence imaging ...
Based on XDS Near-Infrared (NIR) Technology, the FOSS XDS MasterLab provides dedicated NIR analysis for rapid non-destructive measurements of solid dosage forms and solids in vials.
Raman, infrared, and near-infrared chemical imaging.

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