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Synonyms

insulate

American  
[in-suh-leyt, ins-yuh-] / ˈɪn səˌleɪt, ˈɪns yə- /

verb (used with object)

insulated, insulating
  1. to cover, line, or separate with a material that prevents or reduces the passage, transfer, or leakage of heat, electricity, or sound.

    to insulate an electric wire with a rubber sheath; to insulate a coat with down.

  2. to place in an isolated situation or condition; segregate.


insulate British  
/ ˈɪnsjʊˌleɪt /

verb

  1. to prevent or reduce the transmission of electricity, heat, or sound to or from (a body, device, or region) by surrounding with a nonconducting material

  2. to isolate or detach

"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

  • noninsulating adjective
  • preinsulate verb (used with object)
  • reinsulate verb (used with object)
  • superinsulated adjective
  • uninsulated adjective
  • well-insulated adjective

Etymology

Origin of insulate

First recorded in 1530–40, insulate is from the Latin word insulātus made into an island. See insula, -ate 1

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.

Wires should be insulated with silicone rather than PVC, which can crack.

From The Wall Street Journal

But the series’ creator, Thomas Brandon, has a solution: a room at the Orphanage that is ordinarily used for the review of classified materials and which is insulated from all electronic intrusions.

From The Wall Street Journal

Firms that cater to higher-income customers, or sell specialized products such as quality yarn, may be more insulated from worries about broader demand, given wealthier households’ resilience in recent years.

From Barron's

It consists of two superconductors separated by an extremely thin insulating layer.

From Science Daily

My friends and I had alpine winter bags that were thick and insulated.

From Los Angeles Times