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Glossary light emitting diode

Definition of light emitting diode

light emitting diode
1.  An acronym for light emitting diode. LED is a semiconductor diode that emits light when an electric current is applied in the forward direction of the device, as in the simple LED circuit. The effect is a form of electroluminescence where incoherent and narrow-spectrum light is emitted from the p-n junction in a solid state material.