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(Electronics) 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. Abbreviation: LED
pt. and pp. of lead 1 .
pl. LEDs, LED's.
light-emitting diode: a semiconductor diode that emits light when conducting current, used in electronic equipment, esp. for displaying readings on digital watches, calculators, etc.
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|Noun||1.||light-emitting diode - diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used|
alphanumeric display, digital display - a display that gives the information in the form of characters (numbers or letters)
crystal rectifier, junction rectifier, semiconductor diode, diode - a semiconductor that consists of a p-n junction