diode

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“
The true green laser pointer requires a green direct injection laser diode, which is not available for public consumption.

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Definitions (7)

Toggle American Heritage definitions American Heritage Dictionary (3)

  1. noun An electronic device that restricts current flow chiefly to one direction.
  2. noun An electron tube having a cathode and an anode.
  3. noun A two-terminal semiconductor device used chiefly as a rectifier.

Toggle Century definitions Century Dictionary (2)

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Examples (29)

  • Majority carrier devices such as the tunnel diode are also highly radiation resistant. —  Analog October, 1966
  • It looks like something out of "Star Wars," but it's not sci-fi, it's high tech and it's called a diode laser. —  RNews - TOP STORIES
  • A diode is a junction of two types of semiconductor, which only allow electrons to flow in one direction. —  Answerbag: Latest Questions in Question Categories
  • Featuring a high powered green laser diode, the Laser Kaleidoscope is capable of projecting over long distances or lighting up large areas. —  LatestBuy.com.au - New Stuff
  • Once on the diode, the crystals 'electrical properties are manipulated to produce the color, Ballinger said. —  TechWeb
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Etymologies (2)

Toggle Century etymologies Century Dictionary (2)

  1. Greek δι-, two-, + ὁδός, way.
  2. Greek δίοδος, a way through, a passage, from διά, through, + ὁδός, way.
 

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/ˈdaɪoʊd/
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