Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A material that conducts little or no electricity, heat, or sound.
from The Century Dictionary.
- noun A substance which does not conduct or transmit a particular form of energy (specifically, heat or electricity), or which transmits it with difficulty: thus, wool is a non-conductor of heat; glass and dry wood are non-conductors of electricity. See
conductor , 6, electricity, and heat.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physics) A substance which does not conduct, that is, convey or transmit, heat, electricity, sound, vibration, or the like, or which transmits them with difficulty; an insulator
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun any material that does not
conduct electricity ; adielectric
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a material such as glass or porcelain with negligible electrical or thermal conductivity
Etymologies
Sorry, no etymologies found.
Examples
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For he knew, as true men did not, that water, flowing water, was a nonconductor of distorts and illusions.
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The use of electricity for this purpose is made possible by the fact that comparatively dry cotton is a nonconductor of electricity.
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Again, ice, like water, is almost a nonconductor of heat, and earth saturated with water and frozen, is like unto it, so that neither the warmth of the subsoil or surface-soil can be readily imparted to it.
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Zinc is the best nonconductor of heat that I know of.
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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.
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A titanic shell of eight-inch cosmium, a space, with braces of the same nonconductor of heat, cosmium, and a two inch inner hull.
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All you have to do is wrap your core with a nonconductor, say nylon thread, and presto, nothing comes out.
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They took a dry stick because it was a nonconductor of electricity, you know, and rolled the man over to one side, so he was out of reach of the wires.
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They have in them two pieces of tinfoil separated by glass, which is a nonconductor of electric currents, and various other acids and minerals.
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Evidently they put small faith in the "three thousand miles of cool sea-water" as a nonconductor of warfare!
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