ice age

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English[edit]

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Noun[edit]

ice age (plural ice ages)

  1. Any of several cold periods in the history of the earth marked by episodes of extensive glaciation alternating with episodes of relative warmth.
    • 2003, Bill Bryson, A Short History of Nearly Everything, BCA 2003, p. 377:
      The cause of ice ages, Köppen decided, is to be found in cool summers, not brutal winters.

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