Permian

/ˈpʌrmiən/
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Other forms: Permians

Definitions of Permian
  1. noun
    the period of geologic time from about 299 to 252 million years ago, the seventh and final period of the Paleozoic era
    synonyms: Permian period
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    example of:
    geological period, period
    a unit of geological time during which a system of rocks formed
  2. adjective
    relating to or denoting the period from about 299 to 252 million years ago
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