Definitions

shear

shear

[sheer]
shear: see strength of materials.

Rate of change of wind velocity with distance perpendicular to the wind direction. A very narrow zone of abrupt velocity change is known as a shear line. Wind shear is observed near the ground and in jet streams, where it may be associated with clear-air turbulence. Vertical wind shear is closely associated with the vertical flux of momentum, heat, and water vapour.

Learn more about wind shear with a free trial on Britannica.com.

For similarly pronounced words, see sheer, Shere, or sher.

Shear as a noun may refer to:

Shear as a verb or shearing may refer to:

SHEAR as an acronym may refer to:

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