Dictionary
in•ter•state
Pronunciation: (
—adj.in"tur-stāt';
—n.in'tur stāt"), [key]—
adj.
connecting or involving different states:
interstate commerce.
—
n.
1. a highway serving two or more states.
2. (sometimes cap.) a highway that is part of the nationwide U.S. Interstate Highway System.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.