monoline

monoline
 n.— «The Fed defines a “large” credit card bank as a federally insured financial institution with assets in excess of $200 million, and the bulk of those assets in consumer lending with at least 90% of loans originated using credit cards or related products. In banking parlance, these institutions are known as “monolines.”» —“Credit Card Banks Continue to Post Profits” Green Sheet (Rohnert Park, California) July 2, 2004. (source: Double-Tongued Dictionary)