Definition of "interstate" []

• Involving, existing between, or connecting two or more states. (adjective)
• One of a system of highways extending between the major cities of the 48 contiguous United States. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It's not a large zoo, compared with the Atlanta Zoo, and the interstate is annoyingly near (almost directly on top of the elephants)."
• "On the other hand, when it gets to the point that five or more prominent jurists will agree that an individual is engaged in interstate commerce when he plants a seed, and waters the soil in which the seed is planted, with the intent of consuming the resulting plant, well, there is no point in talking about constitutional limits to state power."
• "Modern Commerce clause jurisprudence deems relevant not just the activities but persons and things involved in interstate commerce."