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diode

diode

8 5.2
A small electronic part that lets electric current flow only one way
  • noun
  • /ˈdaɪoʊd/
  • Specialized
translation icon : diodo
  • The circuit requires a diode to ensure that the current flows in only one direction.
  • diode laser
  • light-emitting diodes
  • semiconductor diode

Can we drive diodes with DC or AC?

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Examples

  • Oh, and remember when I said a diode blocks reverse current?

  • Efficient light-emitting diodes based on microresonators will be useful for low-speed, low-power applications.

    Academic text (1994)
  • Then it goes to this diode and another diode.

  • OK, so I need this diode, it's a new diode.

  • See the bright blue diode?

  • You see, a laser diode creates this concentrated beam of light.

  • It's a light emitting diode that basically shoots the light almost straight down.

  • Can we drive diodes with DC or AC?

  • With just one of these diodes, you could convert AC into a bumpy kind of DC.

  • Switching from incandescent to light-emitting diodes would make the total energy savings nationwide quite large.

    Academic text (1994)

Synonyms

semiconductor diode
vsdiode
  • Specialized
5.5

A small electronic part used in power supplies and lights that lets electricity flow only one way

is the general one-way current component not tied to a specific material
rectifier diode
vsdiode
  • Specialized
5.5

A small electronic part that lets electric current flow one way to make direct current

is the general one-way current device without focus on heavy current use
junction rectifier
vsdiode
  • Specialized
7.1

An electrical part that changes a two-way flow of electricity into a one-way flow for power supplies

is the broader one-way current component not limited to single junctions
crystal rectifier
vsdiode
  • Archaic
7.9

A small electronic device that changes alternating current into direct current

is the general one-way current device not confined to that construction
point-contact diode
vsdiode
  • Archaic
8.9

A small electronic part that lets electricity flow in one direction when a metal point touches a crystal

is the broader one-way current device not requiring metal point contact
rectifying valve
vsdiode
  • Archaic
9.9

An electronic tube that changes a back-and-forth flow of electricity into a one-way flow

is the general one-way current component not limited to thermionic tubes
rectifying tube
vsdiode
  • Archaic
9.8

A glass tube with two metal parts that changes alternating current into direct current

is the broader one-way current device not tied to thermionic tube design

Compounds

light-emitting diode
  • Specialized
1 4.6

A small device that makes light when electricity flows through it, for example in traffic lights and screens

rectifier diode
  • Specialized
5.5

A small electronic part that lets electric current flow one way to make direct current

A very thin screen or light that makes light when electricity flows through special plastic materials

8.9

A small electronic part that lets electricity flow in one direction when a metal point touches a crystal

semiconductor diode
  • Specialized
5.5

A small electronic part used in power supplies and lights that lets electricity flow only one way

Zener diode
  • Specialized
7.0

A small electronic part that keeps voltage steady by letting current flow backwards at a set level

How Powerful

rectifier diode
  • Specialized
5.5
diode
  • Specialized
8 5.2

Surface Forms

diode singular
diodes plural

Morphology

diode = di + ode

Although historically formed from the combining forms di- ('two') + -ode ('way/path'), these are not productive standalone English words for most learners, so the modern meaning 'one-way electronic device' is not transparently derivable from the parts.

Etymology

Diode comes from Greek parts di- 'two' and -ode 'way', like 'road'. It was named for having two ends, and today a diode is an electronic part that lets electric current flow in only one direction, like a one-way road.