from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A change in wind direction and speed between slightly different altitudes, especially a sudden downdraft.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A change of wind speed, direction, and magnitude.


Sorry, no etymologies found.


  • But she believed him the same way she believed Air Traffic Control when they reported no wind shear and you suddenly found your aircraft dropping at three thousand feet a minute when you were only two thousand feet in the air.

    The Coffin Dancer


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