nonconductor

[non-kuh n-duhk-ter]

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 non-conductor

protector, nonconductor

Examples from the Web for non-conductor

Historical Examples of non-conductor

Emerson, in perfect agreement with this estimate says, "Her pen was a non-conductor."
Daughters of the Puritans
Seth Curtis Beach
This layer of fat is a non-conductor of cold and in due time is drawn on for food.
The Grizzly
Enos A. Mills
Later on I realized my mistake because my French is a non-conductor of profanity.
An African Adventure
Isaac F. Marcosson
Mancinelli must for once have wished himself a non-conductor?
Punch, or the London Charivari, Vol. 109, July 6, 1895
Various
Because the down is a non-conductor of heat, and black the warmest colour.
The Reason Why
Anonymous

British Dictionary definitions for non-conductor

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