Definitions for "interstate commerce"
The buying and selling of products and services across state borders.
Commerce that involves transportation of articles of commerce across state lines.
Trade, traffic, or transportation in the United States which is between a place in a State and a place outside of such State (including a place outside of the United States) or is between two places in a State through another State or a place outside of the United States. (49CFR390)
Keywords:  exchanging, sellers, goods, buyers, two
Exchanging goods between buyers and sellers in two or more states.