bistate

[ bahy-steyt ]
/ ˈbaɪˌsteɪt /

adjective

of, relating to, or involving two states, especially of the U.S.: a bistate water commission.
of, relating to, or involving the area where two states adjoin: Three million people work in the bistate area.

Origin of bistate

An Americanism dating back to 1915–20; bi-1 + state
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019