insulate

[in-suh-leyt, ins-yuh-]
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.

Origin:
1530–40; < Latin insulātus made into an island. See insula, -ate1

noninsulating, adjective
preinsulate, verb (used with object), preinsulated, preinsulating.
reinsulate, verb (used with object), reinsulated, reinsulating.
superinsulated, adjective
uninsulated, adjective
well-insulated, adjective
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World English Dictionary
insulate (ˈɪnsjʊˌleɪt)
 
vb
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
 
[C16: from Late Latin insulātus: made into an island]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

insulate
1538, "make into an island," from L. insulatus (see insular). Sense of "cause a person or thing to be detached from surroundings" is from 1785. Electrical/chemical sense of "block from electricity or heat" is from 1742. Insulation "insulating material" is from 1870.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
But you can't stay insulated here, because the penguins won't let you.
University presses used to be agents of the university, and were similarly
  insulated from the illogic of the marketplace.
Academia is filled with personal disappointments and perceived failures: no one
  can be insulated from them.
Also, the walks will probably be shoveled, so you don't have to wear insulated
  hiking boots.
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