n 1  :  the action of separating a conductor from conducting bodies by means of nonconductors so as to prevent transfer of electricity, heat, or sound : also  :  the state resulting from such action  2  :  material used to provide insulation in*su*late vt -lat*ed  -lat*ing  
 
 
 
Similar sounding terms:  in·so·la·tion 
 
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