One of the mysteries of the English language finally explained.
- past and past participle of lead
A light-emitting diode (a semiconductor diode which glows when a voltage is applied)‘light sources can be fluorescent tubes, optical fibres, or LEDs’as modifier ‘an LED display’
- ‘Companies are developing ways to use organic light-emitting diodes as a source for lighting up rooms.’
- ‘Japanese scientists have proposed a solution to the puzzle of why blue light-emitting diodes are so bright.’
- ‘Powerful light-emitting diodes have been shown to help heal wounds in laboratory animals and are now being tested on humans at the Medical College of Wisconsin.’
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