light-emitting diode

light-e·mit·ting di·ode

[lahyt-i-mit-ing] .
noun

Origin:
1965–70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Light-emitting diode has a plethora of syllables.
So is dichlorodiphenyltrichloroethane. Does it mean:
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.
(used as a nonsense word by children to express approval or to represent the longest word in English.)
Collins
World English Dictionary
light-emitting diode
 
n
LED a diode of semiconductor material, such as gallium arsenide, that emits light when a forward bias is applied, the colour depending on the semiconductor material: used as off/on indicators

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
light-emitting diode  
See LED.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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FOLDOC
Computing Dictionary

light-emitting diode definition

electronics
(LED) a type of diode that emits light when current passes through it. Depending on the material used the colour can be visible or infrared. LEDs have many uses, visible LEDs are used as indicator lights on all sorts of electronic devices and in moving-message panels, while infrared LEDs are the heart of remote control devices.
See also smoke-emitting diode.
(1996-01-05)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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