- the wavelike effect, characterized by severe updrafts and downdrafts, that occurs when rapidly flowing air encounters the steep front of a mountain range.
Also called lee wave.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for lee wave
The foam from the top of a mountain-wave scudded through the ropes of the car.
Not only will the march of Morse be under the mountain-wave, but his home will be on the deep.