The Permian Basin is a basin[?] in the western part of the U.S. state of Texas, so named because it has one of the thickest deposits of rocks from the Permiangeologic period in the world.
... for Decibel; see Bel
DB is a French automobile maker; see DB (car)
DB is the abbreviation for Deutsche Bahn, the major German railway company
DB is the abbreviation ...