Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An electronic device that allows current to flow in one direction only; a valve.
  • n. A two-terminal semiconductor device, having a p-n junction, used chiefly as a rectifier.

from The Century Dictionary and Cyclopedia

  • Of two ways; in elect. teleg., same as duplex.
  • n. In botany, the rudimentary or transition body in vascular plants which develops into the prothallium.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a thermionic tube having two electrodes; used as a rectifier
  • n. a semiconductor that consists of a p-n junction

Etymologies

Learned formation, coined by William Eccles in 1919, after Greek δίοδος. (Wiktionary)

Examples

  • The evil geniuses* at Wicked Lasers have weaponized a laser for the consumer market by simply (?) rejiggering an unreasonably-powerful blue laser diode from a home theater projector and placing it in a lightsaber casing.

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  • Otellini compared the Obama administration to a "diode" -- an electronic device that conducts electric current in only one direction.

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  • The author of the above hypothesis wrote his degree paper on silicon carbide light-emitting diode, that is why the ending of the forth series is the most simple- it is a modern light-emitting diode.

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  • A diode is a junction of two types of semiconductor, which only allow electrons to flow in one direction.

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  • 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.

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  • Don't misunderstand my opinion here ... a diode is a nice feature, but just un-necessary if you are running such a minimal system and you want to maximize what little you have available.

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  • This is potentially useful, but the diode is a more important (and difficult) component to replicate.

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  • Kozicki said his team was wrestling with how find a way to build an electrical element, called a diode, into the memory cell.

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  • Kozicki said his team was wrestling with how to find a way to build an electrical element, called a diode, into the memory cell.

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  • The result can be seen to be that a diode is a one way valve for electrons.

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