There are 2 definitions of LED in English:


Line breaks: LED
Pronunciation: /ɛliːˈdiː


  • A light-emitting diode (a semiconductor diode which glows when a voltage is applied): light sources can be fluorescent tubes, optical fibres, or LEDs [as modifier]: an LED display
    More example sentences
    • Companies are developing ways to use organic light-emitting diodes as a source for lighting up rooms.
    • Japanese scientists have proposed a solution to the puzzle of why blue light-emitting diodes are so bright.
    • Powerful light-emitting diodes have been shown to help heal wounds in laboratory animals and are now being tested on humans at the Medical College of Wisconsin.


1960s: abbreviation.

More definitions of LED

Definition of LED in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little