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insulator - 6 dictionary results

in⋅su⋅la⋅tor

[in-suh-ley-ter, ins-yuh-]
–noun
1. Electricity.
a. a material of such low conductivity that the flow of current through it is negligible.
b. insulating material, often glass or porcelain, in a unit form designed so as to support a charged conductor and electrically isolate it.
2. a person or thing that insulates.

Origin:
1795–1805; insulate + -or 2
in·su·la·tor     (ĭn'sə-lā'tər, ĭns'yə-)  Pronunciation Key 
n.  
  1. A material that insulates, especially a nonconductor of sound, heat, or electricity.
  2. A device that insulates.

insulator

noun
a material such as glass or porcelain with negligible electrical or thermal conductivity [ant: conductor

insulator   (ĭn'sə-lā'tər)  Pronunciation Key 
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.


insulator

A material that does not easily transmit energy, such as electric current or heat. Materials such as wood, plastic, and ceramics are insulators. Fiberglass is an example of a heat insulator. (Compare conductor.)


[Chapter:] Technology


Insulator

In"su*la`tor\, n. 1. One who, or that which, insulates.

2. (Elec. & Thermotics) The substance or body that insulates; a nonconductor.

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