- The definition of an insulator is something that is used to keep heat or sound contained, or something that does not conduct electricity.
- Soundproofing material is an example of an insulator.
- A substance that doesn't conduct electricity well is an example of an insulator.
These headphones serve as an insulator.
insulator definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
anything that insulates; specif.,
- a nonconductor of electricity, heat, or sound
- a device, as of glass or porcelain, for insulating and supporting electric wires
insulator definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A material that insulates, especially a nonconductor of sound, heat, or electricity.
- A device that insulates.
insulator - Computer Definition
insulator - Cultural Definition
The New Dictionary of Cultural Literacy Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
insulator - Science Definition
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators. Compare conductor.