Triassic

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English[edit]

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Etymology[edit]

1841, coined by geologist Friedrich August von Alberti (1795–1878). From Trias (three-layered geologic strata between the Permian and Jurassic) < German Trias < Ancient Greek τριάς (triás, triad) + -ic.

Pronunciation[edit]

Adjective[edit]

Triassic (not comparable)

  1. Of or from the geologic strata above the Permian and below the Jurassic; of or belonging to the period 250 to 200 million years ago when these strata were laid down.
    • 1990, Michael Crichton, Jurassic Park, Alfred A. Knopf, p 45:
      “Well,” Ellie said. “We know animals have survived. Crocodiles are basically Triassic animals living in the present. Sharks are Triassic. So we know it has happened before.”

Proper noun[edit]

Triassic

  1. (geology) A geologic period within the Mesozoic era; comprises lower, middle and upper epochs from about 250 to 200 million years ago.

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