English dictionary
roadbed
/'r/oU/d,b/E/d/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
a bed supporting a road
Source: WordNet 3.0
-
In railroads, the bed or foundation on which the superstructure (ties, rails, etc.) rests; in common roads, the whole material laid in place and ready for travel.
Source: webster1913