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nonconductor

[non-kuh n-duhk-ter]
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noun
  1. a substance that does not readily conduct heat, sound, or electricity.

Origin of nonconductor

First recorded in 1745–55; non- + conductor
Related formsnon·con·duct·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for nonconductor

Historical Examples

  • All you have to do is wrap your core with a nonconductor, say nylon thread, and presto, nothing comes out.

    Sense from Thought Divide

    Mark Irvin Clifton

  • Strictly speaking, all substances conduct electricity in some degree, and a nonconductor is merely a bad conductor.

  • On this point he remarks that the evil effects of the scale are due to the fact that it is relatively a nonconductor of heat.

  • Paper can be so treated that it will either conduct electricity or become a nonconductor, as may be desired.

    Makers of Many Things

    Eva March Tappan


British Dictionary definitions for nonconductor

nonconductor

noun
  1. a substance that is a poor conductor of heat, electricity, or sound
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