(figuratively) A flood, torrent, or outpouring, especially one of massive proportions. / A Niagara grape.

plural of Niagara

The capital city of Niger.

Initialism of National Iranian American Council.

A river in North America flowing to the north from Lake Erie to Lake Ontario and including the Niagara Falls.

Massive waterfalls located on the Niagara River. / A city in New York near the Falls. / A city in Ontario near the Falls.

A monoamine oxidase inhibitor antidepressant, chemically related to iproniazide.

A particular antihistamine drug derived from piperazine.

(organic chemistry) The amide of niacin.

(mineralogy) An orthorhombic-pyramidal mineral containing calcium, hydrogen, magnesium, manganese, nitrogen, oxygen, and phosphorus.