柯林斯詞典glacial period 1. N any period of time during which a large part of the earth's surface was covered with ice, due to the advance of glaciers, as in the late Carboniferous period, and during most of the Pleistocene; glaciation 冰河時期 返回 glacial period劍橋詞典a time in the past when the temperature was very cold and glaciers covered large parts of the earth 冰（川）期，冰河時代 同義詞ice age 返回 glacial period