far-infrared radiation

[fahr-in-fruh-red]

far-in·fra·red radia·tion

[fahr-in-fruh-red]
noun
the longer wavelengths of electromagnetic radiation in the infrared region of the spectrum, beyond the red end of the visible spectrum, from 50 to 1000 micrometers. Abbreviation: FIR
Also called far-red radiation [fahr-red] .
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Far-infrared radiation has a plethora of syllables.
So is dichlorodiphenyltrichloroethane. Does it mean:
given to using long words.
a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.
American Heritage
Science Dictionary
far-infrared radiation   (fär'ĭn'frə-rěd')  Pronunciation Key 
Infrared electromagnetic radiation of very long wavelengths, in the range of 2-50 microns. It is used in medicine to provide a penetrating heat to the body. Also called far-red radiation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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