Laurentian Hear it!

Laurentian definition

Lau·ren·tian (lô ren′s̸hən)

adjective

  1. of or relating to the St. Lawrence River
  2. designating or of a series of rocks of the Precambrian system in E Canada

Etymology: < L laurentius, Lawrence + -an

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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