light-emitting diode

noun

light-emit·​ting diode ˈlīt-ē-ˈmi-tiŋ- How to pronounce light-emitting diode (audio)
: led

Examples of light-emitting diode in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Light therapy: These treatments aim blue or red LED (light-emitting diode) light or infrared light directly at acne to reduce breakouts. Cristina Mutchler, Verywell Health, 13 Mar. 2025 The new display tech is based on light-emitting diodes (LEDs), which make up the commercial displays with the smallest pixels and highest pixel density currently available. Michael Irving, New Atlas, 30 Mar. 2025 Kits included two batteries and light-emitting diodes, and were designed so that participants—including a few 5-year-olds—didn’t need to solder anything to put them together. IEEE Spectrum, 1 Sep. 2017 The screen is made up of OLEDs — organic light-emitting diodes — printed on a transparent piece of glass no wider than a smartphone. Jennifer Jolly, USA TODAY, 11 Mar. 2025 See All Example Sentences for light-emitting diode

Word History

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of light-emitting diode was in 1962

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Cite this Entry

“Light-emitting diode.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light-emitting%20diode. Accessed 26 Apr. 2025.

Kids Definition

light-emitting diode

noun
: LED

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