well-insulated

in·su·late

[in-suh-leyt, ins-yuh-]
verb (used with object), in·su·lat·ed, in·su·lat·ing.
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

Related forms
non·in·su·lat·ing, adjective
pre·in·su·late, verb (used with object), pre·in·su·lat·ed, pre·in·su·lat·ing.
re·in·su·late, verb (used with object), re·in·su·lat·ed, re·in·su·lat·ing.
su·per·in·su·lat·ed, adjective
un·in·su·lat·ed, adjective
well-in·su·lat·ed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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a scrap or morsel of food left at a meal.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
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Collins
World English Dictionary
insulate (ˈɪnsjʊˌleɪt) [Click for IPA pronunciation guide]
 
—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
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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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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