infrared

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Related to Infra-red light: infrared lamp, ultraviolet light

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.

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.

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]

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.
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"
Translations
infraroig
infračervený
infrarødinfrarød stråling
infrapuna
적외선
infrarødinfrarød stråling
infravermelho
infrarödinfraröd strålning

infrared

[ˈɪnfrəˈred] ADJ [rays, light] → infrarrojo

infrared

infra-red [ˌɪnfrəˈrɛd] adj
[light, radiation] → infrarouge
[equipment, sensor] → infrarouge; [camera] → infrarouge

infrared

adjinfrarot

infrared

[ˌɪnfrəˈrɛd]
1. adjinfrarosso/a
2. n (raggio) → infrarosso

infrared

adj infrarrojo
References in periodicals archive ?
What Caleb did was to connect two infra-red light bulbs to provide heat and light.
Near infra-red spectroscopy technology is developed to exploit the very characteristic attenuation of infra-red light by water as a means to measure the water-cut in mixtures of oil and water.
1038/nature18940) Nature  science journal, measured the non-visible, infra-red light the gaseous planet emits in order to gauge the temperature of the upper atmosphere 500 miles higher than the planet's rim.
FOR A BROADER SHIELD ON A BUDGET Designer face creams have gone big on blocking infra-red light, which makes up a third of the sun's damaging, ageing rays and isn't shielded by standard UVA/B filters.
Electrons are excited by absorbing the near infra-red light and then revert back to their ground state and energy is released in the form of heat.
In the infra-red method, the device projects a grid of infra-red light onto an object; this grid is invisible to the human eye.
For example, a floral pattern is made in such a way that it will disappear when exposed to an infra-red light.
There is also a workshop there which offers Au7,000 detailing jobs, using infra-red light to remove every little scratch and return to car to its original showroom condition.
in Astronomer Mr Scagell branded sunglasses as "useless" for the task and said makeshift filters such as a bin liner or photo negative may also fail to screen out the infra-red light that can burn your retina.
New studies using X-rays and narrow-spectrum light, including the ultra-violet and infra-red light bands, are finding hidden treasures nobody suspected were there.
Mr Bassi devised an infra-red light tool to assess meibomian gland dropout in soft contact lens wearers and found that differences in clinical performance between lens materials became significant in patients who showed glandular dropout.
The USB-shaped device developed by Israeli start-up Consumer Physics uses spectrometry to read the "molecular fingerprint' of an object that shines near Infra-Red light on it which will stimulate the molecules and then records their reactions, CNN.