(IR) infrared. Electromagnetic radiation with wavelength longer than visible light but shorter than that of microwaves. Infrared radiation is produced by hot objects; absorption of infrared radiation causes chemical bonds to vibrate.
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http://antoine.frostburg.edu/chem/senese/101/glossary/i.shtml
Electromagnetic radiation of wavelengths approximately between 0.75 and 1000 mm. See atmospheric radiation, terrestrial radiation, longwave radiation
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http://nsidc.org/arcticmet/glossary/infrared_radiation.html
Electromagnetic energy with wave lengths from 770 to 12,000 nanometers.
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http://www.bocindustrial.co.uk/bocindustrial/technical/glossary/i.html
that portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. ... [14 related articles]
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http://www.britannica.com/eb/a-z/i/22
Electromagnetic radiation whose wavelength is longer than that of visible light, and is responsible for the transmission of radiant heat.
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http://www.chemicalglossary.net/definition/944-Infrared_Radiation
Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers; invisible long wavelength radiation (heat) capable of producing a thermal or photovoltaic effect, though less effective than visible light. Related category • SOLAR ENE...
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http://www.daviddarling.info/encyclopedia/I/AE_infrared_radiation.html
Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers; invisible long wavelength radiation (heat) capable of producing a thermal or photovoltaic effect, though less effective than visible light.
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http://www.electromn.com/glossary/i.htm
electromagnetic radiation with wavelengths which in vacuum are greater than those for visible radiation, thus being between 780 nm and 1 mm in vacuum
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=841-24-01
optical radiation for which the wavelengths are longer than those for visible radiation NOTE - For infrared radiation, the range between 780 nm and 1 mm is commonly subdivided into:
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http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=845-01-04
Electromagnetic radiation lying in the wavelength interval from 0.7 5m to 1000 5m (micrometers). Its lower limit is bounded by visible radiation, and its upper limit by microwave radiation. Most of the energy emitted by the Earth and its atmosphere is at infrared wavelengths. Infrared radiation is generated almost entirely by large-scale intramolec...
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http://www.encyclo.co.uk/local/20130
Invisible electromagnetic radiation of wavelength in the region of 760nm to 1nm. It occurs between the red end of the visible spectrum and the shortest microwaves. Its harmful effects on the human being include burning of the skin, increase in pigmentation and the induction of cataracts.
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http://www.encyclo.co.uk/local/20474
Infrared radiation is emitted in the infrared part of the electromagnetic spectrum, used in infrared imaging.
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http://www.encyclo.co.uk/local/20762
electromagnetic radiation at the wavelengths emitted by a red-hot body, longer than the wave-lengths of visible light.
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http://www.encyclo.co.uk/local/20842
Electromagnetic radiation with wavelengths between 750 nanometres and 1,000,000 nanometres (or 1 millimetre). This is more commonly known as heat energy. ... (09 Oct 1997) ...
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http://www.encyclo.co.uk/local/20973
Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers; invisible long wavelength radiation (heat) capable of producing a thermal or photovoltaic effect, though less effective than visible light.
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http://www.encyclo.co.uk/local/21690
Electromagnetic radiation whose wavelength is longer than that of visible light, and is responsible for the transmission of radiant heat.
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http://www.encyclo.co.uk/visitor-contributions.php
The heat energy that is emitted from all solids, liquids, and gases. In the context of the greenhouse issue, the term refers to the heat energy emitted by the Earth's surface and its atmosphere. Greenhouse gases strongly absorb this radiation in the Earth's atmosphere, and radiate some back towards the surface, creating the gree...
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http://www.encyclo.co.uk/visitor-contributions.php
Form of electromagnetic radiation with a wavelength between 0.7 and 100 micrometers (µm). Also called longwave radiation.
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http://www.physicalgeography.net/physgeoglos/i.html
electromagnetic radiation of wavelengths between approximately 0.75 and 1000 millimeters; see also atmospheric radiation, terrestrial radiation, longwave radiation .
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https://nsidc.org/cryosphere/glossary?page=14
Electromagnetic radiation lying in the wavelength interval from 0.7 micrometers to 1000 micrometersm. Its lower limit is bounded by visible radiation, and its upper limit by microwave radiation. Most of the energy emitted by the Earth and its atmosphere is at infrared wavelength. Infrared radiation is generated almost entirely by large-scale intra-...
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https://www.encyclo.co.uk/local/20128
Electromagnetic radiation from the sun that has wavelengths slightly longer than visible light.
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https://www.encyclo.co.uk/local/21033
The long wave, (between 0.8 and 100 micrometres in wavelength) electromagnetic radiation emitted by all objects. Often also referred to as heat radiation. Terrestrial radiation, the radiant heat from the Earth's surface, is a form of infrared radiation. The so-called greenhouse gases readily absorb infrared radiation.
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https://www.encyclo.co.uk/local/21131
Electromagnetic radiation of wavelength between about 700 nanometres and 1 millimetre – that is, between the limit of the red end of the visible spectrum and the shortest microwaves. All bodies above the absolute zero of temperature absorb and radiate infrared radiation. Infrared radiation is used in medical photography and treatment, and in i......
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https://www.encyclo.co.uk/local/21221
Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers; invisible long wavelength radiation (heat) capable of producing a thermal or photovoltaic effect, though less effective than visible light.
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https://www.encyclo.co.uk/local/22819
[Eye and Face Protection] (IR) Invisible electromagnetic radiation with wavelengths which lie within the range of 0.70 to 1000 µm.
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https://www.osha.gov/SLTC/etools/eyeandface/glossary.html
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