DNSGan area of thick ice that permanently covers the North and South Poles 〔南北极的〕冰盖，冰冠
Examples from the Corpus
ice cap• He may have seen the continental ice cap, raised by mirage.• Adult males are nomadic, wandering all round the polar ice cap and living mainly off seals.• Coastal geographic states, such as Florida, would be particularly vulnerable to ice cap melting associated with such an increase.