niagara

• ⇰ A large flow, used figuratively.

• ⇰ A large waterfall on the Niagara River near <city>Buffalo</city> remarkable for the volume and constancy of the water flowing over it. That part of the waterfall in Canada is the Horseshoe Falls; the U. S. portion is called the American Falls.
• ⇰ A river flowing from Lake Erie into Lake Ontario, which forms the boundary between Ontario and New York.