nonconductor

[non-kuh n-duhk-ter]

See more synonyms for nonconductor on Thesaurus.com

noun

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

Related Words for nonconductor

protector, nonconductor

Examples from the Web for nonconductor

Historical Examples of nonconductor

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.
Torpedoes and Torpedo Warfare
C. W. Sleeman
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.
Scientific American Supplement, No. 363, December 16, 1882
Various
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

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