Silurian Hear it!

Silurian definition

Si·lu·rian (si lo̵or′ē ən, sī-)

adjective

  1. of the Silures

  2. Etymology: because the rocks were first found in an area in SE Wales: see Silures

    designating or of the third geologic period of the Paleozoic Era, characterized by the development of coral reefs and small land plants, the first fish with jaws, and the first land arthropods
Silurian Idioms

the Silurian

the Silurian Period or its rocks

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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