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

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

From Time Magazine Archive

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

They have in them two pieces of tinfoil separated by glass, which is a nonconductor of electric currents, and various other acids and minerals.

From Walter and the Wireless by William F. (William Frederick) Stecher

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

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

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