glaciation
    n 1: the condition of being covered with glaciers or masses of
         ice; the result of glacial action; "Agassiz recognized
         marks of glaciation all over northern Europe"
    2: the process of covering the earth with glaciers or masses of
       ice

Glaciation \Gla`ci*a"tion\, n.
   1. Act of freezing.
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   2. That which is formed by freezing; ice.
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   3. The process of glaciating, or the state of being
      glaciated; the production of glacial phenomena.
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