National bank

The term national bank has several meanings:especially in developing countries, a bank owned by the statean ordinary private bank which operates nationally (as opposed to regionally or locally or even internationally)In the past, the term "national bank" has been used synonymously with "central bank", but it is no longer used in this sense today. Some central banks may have the words "National Bank" in their name; retrospectively if a bank is named in this way, it is not automatically considered a central bank. Example: National-Bank AG in Essen, Germany is a privately owned commercial bank, just like National Bank of Canada of Montreal, Canada. On the other side, National Bank of Ethiopia is the central bank of Ethiopia and National Bank of Cambodia is the central bank of Cambodia 
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Noun
1. a commercial bank chartered by the federal government
(hypernym) commercial bank, full service bank
(member-holonym) Federal Reserve System, Federal Reserve, Fed, FRS

A commercial bank approved by the U.S. comptroller of the currency, which is required to be a member of and purchase stocks in the Federal Reserve System.