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roadbed definition

☆ road·bed (rōd′bed′)

noun

    1. the foundation laid to support the ties, rails, and ballast of a railroad
    2. a layer of crushed rock, cinders, etc. immediately under the ties
  2. the foundation or surface of a road or highway

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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