This Definition of Commercial or Business Law comes from:

Nolo’s Plain-English Law Dictionary:

The law that applies to the rights, relations, and conduct of persons and businesses engaged in commerce, merchandising, trade, and sales. In recent years this body of law has been codified in the Uniform Commercial Code (UCC), which has been almost universally adopted by the U.S. states.

Commercial or Business Law are common legal terms.

The John Vierthaler Law Firm practices Business Law and Commercial Law in Littleton, Colorado.