WordNet
glacial epoch
名詞
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氷河期 氷河時代
any period of time during which glaciers covered a large part of the earth's surface.
地表の大部分を氷河が覆った時代。
言い換え
Glacial epoch
名詞
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氷河期 更新世
from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution.
2百万年前から1万1千年前まで。北半球の広範な氷河化。人類進化の時代。