Precambrian Hear it!

Precambrian definition

Pre·cam·brian (prē kam′brē ən)

adjective

designating or of the division of geologic time covering all the time before the Cambrian Period, equivalent to the Archean Eon and the Proterozoic Eon
Precambrian Idioms

the Precambrian

the Precambrian time 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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