led
verb
simple past tense and past participle of lead.
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led
1 American
[led]
/ lɛd /
verb
LED
2
American
[el-ee-dee, led]
/ ˈɛlˌiˈdi, lɛd /
noun
LED
1
British
abbreviation
led
2
British
/ lɛd /
verb
LED
Scientific
/ ĕl′ē-dē′,lĕd /
-
Short for light-emitting diode. An electronic semiconductor device that emits light when an electric current passes through it. They are considerably more efficient than incandescent bulbs, and rarely burn out. LEDs are used in many applications such as flat-screen video displays, and increasingly as general sources of light.
-
See also semiconductor laser
Other Word Forms
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
That amount is extraordinarily small, far below the energy needed to briefly power a tiny LED light.
From Science Daily • May 19, 2026
His previous creations have included a smartwatch and a high-tech face mask launched during the pandemic and tricked out with Bluetooth, LED lights and a magnetic earbud docking system.
From The Wall Street Journal • May 18, 2026
They pivoted from shooting solely on location in Greece to filming some parts in L. A. in front of an LED wall.
From Los Angeles Times • May 13, 2026
Instead of targeting the powerhouse of the cell - the mitochondria - like red light therapy beds and LED masks, the main benefits come from their heat.
From BBC • May 2, 2026
Sloth’s scavenge features peered through the duct hole, an LED smear on her forehead.
From "Ship Breaker" by Paolo Bacigalupi
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
