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Noun: glaciation  gley-shee'ey-shun or gley-see'ey-shun
  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

Derived forms: glaciations

Type of: environmental condition, geologic process, geological process

Encyclopedia: Glaciation