Pronunciation: (wind), [key]
1. Also,trade' winds". Also called trades. any of the nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere.
2. any wind that blows in one regular course, or continually in the same direction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.