An accumulation of wind-blown snow deposited in the lee of obstructions of heaped by wind eddies.

a mass of snow heaped up by the wind

snow that collects in a ridge due to wind

Snow deposited behind obstacles or irregularities of the surface, or collected in heaps by eddies in the wind.

an accumulation or bank of snow formed when wind blows snow against an obstruction; often considerably thicker than the surrounding snowcover.

A snowdrift is a deposit of snow created by wind into a mound during snowstorms. They resemble sand dunes and are formed in a similar manner, namely, wind moving light snow and depositing it when the wind is slowed, usually against a stationary object.