Definition from Wiktionary, the free dictionary
megabank (plural megabanks)
- (informal) A major bank.
2008 February 27, Eric Dash, “Small and Midsize U.S. Banks Beginning to Struggle in Credit Crisis”, New York Times:
- “The megabanks get all the headlines,” said Jaret Seiberg, a research analyst for the Stanford Group, a private wealth management and banking firm.