infrared

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infrared

 [in″frah-red´]
denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, i.e., of 0.75–1000 μm. Infrared rays are sometimes subdivided into long-wave or far infrared (about 3.0–1000 μm) and short-wave or near infrared (about 0.75–3.0 μm). They are capable of penetrating body tissues to a depth of 1 cm. Sources of infrared rays include heat lamps, hot water bottles, steam radiators, and incandescent light bulbs. Infrared rays are used therapeutically to promote muscle relaxation, to speed up the inflammatory process, and to increase circulation to a part of the body. See also heat.

in·fra·red (IR, ir),

(in-fră-red'),
That portion of the electromagnetic spectrum with wavelengths between 730 and 1000 nm.

infrared

/in·fra·red/ (-red´) denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, having wavelengths of 0.75–1000 μm; sometimes subdivided into long-wave or far i. (about 3.0–1000 μm) and short-wave or near i. (about 0.75–3.0 μm).

in·fra·red

(in'fră-red)
That portion of the electromagnetic spectrum with wavelengths between 770-1000 nm.

infrared

the electromagnetic radiation in the region between red light and radio waves. see ELECTROMAGNETIC SPECTRUM.

infrared (IR) (inˑ·fr·redˈ),

n electromagnetic radiation of longer wavelength than red light in the range of 730 nanometres (nm) to about 1 millimetre (mm).

infrared (IR)

Radiant energy of wavelengths between the extreme red wavelengths of the visible spectrum and a wavelength of a few millimetres. The wave band comprising radiations between 780 and 1400 nm is referred to as IR-A. Excessive exposure to these radiations can cause visual loss (e.g. eclipse blindness) and cataract. The waveband comprising radiations between 1400 and 3000 nm is referred to as IR-B. Excessive exposure to these radiations can cause cataract and corneal opacity. The wave band comprising radiations between 3000 and 1 ✕ 106 nm (or 1 mm) is referred to as IR-C. Excessive exposure to these radiations can cause cataract (heat-ray cataract). See eclipse blindness; absorptive lens; infrared optometer.

infrared

denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, having wavelengths of 0.75-1000 μm. Infrared rays are sometimes subdivided into long-wave or far infrared (about 3.0-1000 μm) and short-wave or near infrared (about 0.75-3.0 μm). They are capable of penetrating body tissues to a depth of 10 mm. Sources of infrared rays include heat lamps, hot water bottles, steam radiators and incandescent light bulbs.
Infrared rays are used therapeutically to promote muscle relaxation, to speed up the inflammatory process, and to increase circulation to a part of the body. See also heat.
References in periodicals archive ?
50pm and the full line of light will remain illuminated until about 7pm.
45pm the first light will be illuminated at Wallsend in North Tyneside and an hour later the line of lights will reach Bowness-on-Solway in Cumbria.
One of the attractions will be to watch the line of light creep across the country, but there will be a period of around 20 minutes when the whole Wall is lit up.
Luxtec's own extensive line of light sources, vision systems, fiber optic cables and cameras can be used with the arthroscopic telescopes, the company said.
Each PRIME Equipment Rental Outpost will carry a full line of light contractor/homeowner-type equipment.
If the movie is watched closely, observers will see a line of light appear in the right and move across to the left.
The continuous line of light along the 84-mile length of the Wall also exposed the monument to an estimated worldwide audience of 855 million.
The event, with a helicopter filming the advancing line of light, has had international coverage from Europe to Australia and the Philippines, raising the profile of the world heritage site.
HADRIAN'S Wall will be lit up tonight in a spectacular line of light from coast to coast.
The first one will be lit at Segedunum Roman Fort, Wallsend, in the North East, with the line of light then snaking its way along the wall to Bownesson-Solway in Cumbria over the following hou r.
HEXHAM, England, November 23 /PRNewswire/ -- Plans have been unveiled to create a spectacular line of light from coast to coast, along the length of Hadrian's Wall, next year.
Amy's has added Vegetarian Organic Refried Beans (Traditional or Black) to its new line of Light in Sodium foods.