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semiconductor

American  
[sem-ee-kuhn-duhk-ter, sem-ahy-] / ˌsɛm i kənˈdʌk tər, ˌsɛm aɪ- /

noun

  1. a substance, as silicon or germanium, with electrical conductivity intermediate between that of an insulator and a conductor: a basic component of various kinds of electronic circuit element semiconductor device used in communications, control, and detection technology and in computers.

  2. a semiconductor device.


semiconductor British  
/ ˌsɛmɪkənˈdʌktə /

noun

  1. a substance, such as germanium or silicon, that has an electrical conductivity that increases with temperature and is intermediate between that of a metal and an insulator

    1. a device, such as a transistor or integrated circuit, that depends on the properties of such a substance

    2. ( as modifier )

      a semiconductor diode

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

semiconductor Scientific  
/ sĕm′ē-kən-dŭktər /
  1. Any of various solid substances, such as silicon or germanium, that conduct electricity more easily than insulators but less easily than conductors. In semiconductors, thermal energy is enough to cause a small number of electrons to escape from the valence bonds between the atoms (the valence band); they orbit instead in the higher-energy conduction band, in which they are relatively free. The resulting gaps in the valence band are called holes. Semiconductors are vital to the design of electronic components and circuitry, including transistors, laser diodes, and memory and computer processing circuits.


semiconductor Cultural  
  1. A material that conducts (see conduction) electricity, but very poorly. Silicon is the most common and familiar semiconductor. Devices made from semiconductors, such as the transistor, are the basis of the modern microelectric industry.


Other Word Forms

  • semiconduction noun

Etymology

Origin of semiconductor

First recorded in 1875–80; semi- + conductor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The brokerage keeps an overweight stance on semiconductors and IT hardware due to strong earnings, as well as financials on attractive valuations.

From The Wall Street Journal

To produce these shifting textures, the team combined electron-beam lithography, a technique widely used in semiconductor manufacturing, with a water-responsive polymer film.

From Science Daily

Researchers at the University of California, Davis have identified a surprising property in a class of materials known as perovskites that could pave the way for a new generation of light-controlled semiconductor devices.

From Science Daily

Strong demand for semiconductor shipments and higher chip prices drove March’s export growth.

From The Wall Street Journal

Moreover, fears of a shortage of helium have also raised alarm in the semiconductor industry.

From MarketWatch