/ˈɪnsjuleɪt; US -səl- ||; ˈɪnsəˌlet/verb [T] insulate sth (against/from sth) to protect sth with a material that prevents electricity, heat or sound from passing through 使绝缘；使隔热；使隔音: The walls are insulated against noise. 这墙有隔音设备。 (figurative 比喻) This industry has been insulated from the effects of competition. 这个行业一直不受竞争的影响。 ➔insulation /ˌɪnsjuˈleɪʃn ||; ˌɪnsəˈleʃən/ noun [U]