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BNC: 17681 COCA: 11470

led

1 of 2

past tense and past participle of lead

: a semiconductor diode that emits light when a voltage is applied to it and that is used especially in electronic devices (as for an indicator light)

Word History

Etymology

Noun

light-emitting diode

First Known Use

Noun

1968, in the meaning defined above

Time Traveler
The first known use of led was in 1968

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