roadbed

noun road·bed \ ˈrōd-ˌbed \
Updated on: 12 Dec 2017

Definition of roadbed

1 a : the bed on which the ties, rails, and ballast of a railroad rest
b : the ballast or the upper surface of the ballast on which the ties rest
2 a : the earth foundation of a road prepared for surfacing
b : the part of the surface of a road traveled by vehicles

Recent Examples of roadbed from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'roadbed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of roadbed

1828


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