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roadbed: Meaning and Definition of

road•bed

Pronunciation: (rōd'bed"), [key]
— n.
    1. the bed or foundation structure for the track of a railroad.
    2. the layer of ballast immediately beneath the ties of a railroad track.
  2. the material of which a road is composed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
road apple roadblock
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