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.
The study, led by Lige Leng and colleagues at Xiamen University in China, focused on Menin, a protein that helps suppress inflammation in the brain.
From Science Daily • May 24, 2026
The scheme, led by Durham County Council and the Heritage Coast Partnership, focused on restoring magnesian limestone grasslands between Nose's Point near Seaham and Blackhall Rocks.
From BBC • May 23, 2026
While China has led the way in developing green technologies, it remains the world’s largest producer and consumer of coal.
From The Wall Street Journal • May 23, 2026
Sterling was truly detestable in his time, but at least he fielded a highly competitive and exciting Lob City squad led by legendary coach Doc Rivers.
From Los Angeles Times • May 23, 2026
Kate led séances that brought the couple’s children back home.
From "American Spirits" by Barb Rosenstock
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.
