Adjective: interstate ,in-tu(r)'steyt
- Involving and relating to the mutual relations of states especially of the United States
"Interstate Highway Commission"; "Interstate Commerce Commission"; "interstate highways"; "interstate commerce"
- One of the system of highways linking major cities in the 48 contiguous states of the United States
"We took the interstate to save time on our cross-country trip";
- interstate highway
Derived forms: interstates
Antonym: intrastate
Encyclopedia: Interstate