cover or protect something with a material that prevents electricity, heat, or sound from escaping or entering.
Homeowners insulate their attic to keep the house warm in winter.
The electrician insulates all the wires before connecting them.
✦ Mid 16th century: from Latin insulatus ‘made into an island’, from insula ‘island’, later developing the sense of surrounding or isolating as an island is from the mainland.
protect someone or something from unpleasant experiences or harmful influences.
Parents try to insulate young children from scary news.
The spokesperson insulates the politician from tough questions.
