light-emitting diode

American

[lahyt-i-mit-ing] / ˈlaɪt ɪˌmɪt ɪŋ /

noun

LED.

light-emitting diode British

noun

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" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

light-emitting diode Scientific

See LED

Etymology

Origin of light-emitting diode

First recorded in 1965–70

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.

See Examples For:

light-emitting diode

By blocking current from flowing in at the edges and corners, the design ensures stable and reliable operation of the nano light-emitting diode.

From Science Daily ● Mar. 4, 2026

The day after he died, the campus’s State Farm Center arena was bathed in red to commemorate his invention of the first visible light-emitting diode in 1962.

From New York Times ● Sep. 30, 2022

When Dr. Holonyak developed a light-emitting diode — a semiconductor light source that emits light when an electric current flows through it — he was literally showing the world in a whole new light.

From Washington Post ● Sep. 21, 2022

The organic light-emitting diode technology company reported disappointing second-quarter profits.

From Seattle Times ● Aug. 6, 2021

Yao and his team reported on 17 February in Nature that such a film can create enough power to light a light-emitting diode, and 17 such devices connected together can power a cellphone.

From Science Magazine ● Aug. 19, 2020

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023