Definition of "interstate highway" [interstate highway]
One of the system of highways linking major cities in the 48 contiguous states of the United States(noun)
WordNet. Princeton University. 2010.
Use "interstate highway" in a sentence
"The 1956 Federal-Aid Highway Act, which funded the interstate highway system, opened up outlying rural areas to urbanization."
"The Hoover Dam, the Tennessee Valley Authority, the interstate highway system, the Internet, the Human Genome Project-time and again, government investment has helped pave the way for an explosion of private economic activity."