Wind-shear definition
A significant variation in the speed or velocity of the wind with respect to location or altitude, as in the speed change of a downdraft, or in the directional change of lateral winds along the edge of a thunderstorm.
noun
A sudden change in the direction of the wind; esp., a sudden, dangerous downdraft encountered as by aircraft.
noun
A change in wind direction and speed between slightly different altitudes, especially a sudden downdraft. Depending on its scale, wind shear can cause a variety of effects, from minor turbulence to tornadoes. Wind shear caused by interactions between oceanic and atmospheric winds can be so strong that it can dissipate hurricanes.
Other Word Forms
Noun
Singular:
wind-shear
Plural:
wind shears