nonconductor

American

[non-kuhn-duhk-ter] / ˌnɒn kənˈdʌk tər /

noun

a substance that does not readily conduct heat, sound, or electricity.

nonconductor British

/ ˌnɒnkənˈdʌktə /

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

Other Word Forms

nonconducting

adjective

Etymology

Origin of nonconductor

First recorded in 1745–55; non- + 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.

See Examples For:

nonconductor

Where all the films are removed, the remaining glass is a nonconductor.

From Time Magazine Archive

Through this spark-charged atmosphere, Lem Lemnitzer moved like a nonconductor.

From Time Magazine Archive

Mica, which laymen know as isinglass, is mainly used in peacetime as a nonconductor for electrical equipment.

From Time Magazine Archive

Zinc is the best nonconductor of heat that I know of.

From Doctor Jones' Picnic by Chapman, S. E. (Samuel E.)

The hair furnishes protection against extreme and sudden variations of temperature by reason of the fact that hairs are poor conductors of heat, and inclose between them a still layer of air, itself a nonconductor.

From Special Report on Diseases of Cattle by United States. Bureau of Animal Industry

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023