Triassic

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

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.