Definition of ice age noun from the Oxford Advanced Learner's Dictionary


ice age

BrE BrE//ˈaɪs eɪdʒ//
; NAmE NAmE//ˈaɪs eɪdʒ//
(also the Ice Age)
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one of the long periods of time, thousands of years ago, when much of the earth’s surface was covered in ice
See the Oxford Advanced American Dictionary entry: ice age