Super Finance Glossary Over 10,000 financial glossary terms... Browse by Letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Or Enter Search Term: By Author: All Sources Campbell Harvey Internal Revenue Service Finance Globe FDIC Snow Gold CFTC U.S. Census Bureau Search Tips Debenture Source DebentureDefinition: Any debt obligation backed strictly by the borrower's integrity, e.g. an unsecured bond. A debenture is documented in an indenture.