1. a commercial bank chartered by the federal government;
The Collaborative International Dictionary of English v.0.48:
National \Na"tion*al\ (?; 277), a. [Cf. F. national.]
1. Of or pertaining to a nation; common to a whole people or
race; public; general; as, a national government,
language, dress, custom, calamity, etc.
2. Attached to one's own country or nation.
National anthem, a popular song or hymn which has become by
general acceptance the recognized musical expression of
the patriotic sentiment of a nation; as, "God save the
King" is called the national anthem of England.
National bank, the official common name of a class of
banking corporations established under the laws of the
National flag. See under Flag.
National guard, a body of militia, or a local military
organization, as in Paris during the French Revolution, or
as certain bodies of militia in other European countries
and in the United States.
National salute, a salute consisting of as many guns as
there are States in the Union. [U.S.]
WordNet (r) 3.0 (2006):
n 1: a commercial bank chartered by the federal government