Merriam-Webster Online Dictionary

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One entry found for insulate.
Main Entry: in·su·late
Pronunciation: 'in(t)-s&-"lAt
Function: transitive verb
Inflected Form(s): -lat·ed; -lat·ing
Etymology: Latin insula
Date: circa 1741
: to place in a detached situation : ISOLATE; especially : to separate from conducting bodies by means of nonconductors so as to prevent transfer of electricity, heat, or sound