1. A very aggressive, violent, tropical storm usually beginning along the equator: "The hurricane that reached Japan and destroyed so much of the coastline originated in the eastern areas of the Pacific Ocean, showing that such horrendous storms don't only start in the Atlantic Ocean or even the Caribbean Sea."
2. A wind at a speed of more than 75 miles (121 kilometers, or 73 knots) per hour: "The velocity of the hurricane last week was measured at 80 mph on the Beaufort scale."
3. A sudden and violent outburst: "The news of the tax rate going up to 30% unleashed a hurricane of violent anger and chaos in the country."
4 Etymology: Spanish huracán; from Taino hurákan; related to Arawak kulakani, "thunder".