niagara

noun

1. a river on the boundary between W New York and Ontario, Canada, flowing from Lake Erie into Lake Ontario. 34 miles (55 km) long.
2. Niagara Falls.
3. Fort, a fort in W New York, at the mouth of the Niagara River.
4. (lowercase) anything taken as resembling Niagara Falls in force and relentlessness; avalanche: a niagara of criticism.
5. Horticulture.
   1. a variety of white grape, grown for table use.
   2. the vine bearing this fruit.

noun

1. a river in NE North America, on the border between W New York State and Ontario, Canada, flowing from Lake Erie to Lake Ontario. Length: 45 km (28 miles)
2. a torrent

waterfall from Lake Erie to Lake Ontario, from a town name, perhaps from an Iroquoian language and meaning “a neck” (between two bodies of water); general sense of “a cataract, torrent” is attested from 1841; meaning ” ‘shower’ of ringlets (true or false) in women’s hair” is from 1864, also known as cataract curls.