semiconductor

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noun semi·con·duc·tor \-ˈdək-tər\

Definition of semiconductor

  1. :  any of a class of solids (such as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures

Did You Know?

A semiconductor is a crystal material whose ability to conduct electricity rises as its temperature goes up. That is, it sometimes acts as a conductor and sometimes as an insulator. Its conducting ability can be much increased by chemical treatment. A manufactured chip of silicon, less than half an inch square, may contain millions of microscopic transistors, which can serve control and memory functions when installed in a computer, automobile, cell phone, DVD player, or microwave oven.

1838

First Known Use of semiconductor

1838


SEMICONDUCTOR Defined for English Language Learners

semiconductor

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noun semi·con·duc·tor \-ˈdək-tər\

Definition of semiconductor for English Language Learners

  • : a material or object that allows some electricity or heat to move through it and that is used especially in electronic devices


SEMICONDUCTOR Defined for Kids

semiconductor

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noun semi·con·duc·tor \ˌse-mi-kən-ˈdək-tər\

Definition of semiconductor for Students

  1. :  a solid substance that conducts electricity imperfectly


Medical Dictionary

semiconductor

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noun semi·con·duc·tor \-kən-ˈdək-tər\

Medical Definition of semiconductor

  1. :  any of a class of solids (as germanium or silicon) whose electrical conductivity is between that of a conductor and that of an insulator in being nearly as great as that of a metal at high temperatures and nearly absent at low temperatures



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