0 a large pile of snow formed by the wind
1 a hill of snow created by the wind:
There were some snowdrifts as high as twenty feet.
Strong winds make snowdrifts, large piles of snow that the wind forms.
Yet after 17 years lying buried deep under snowdrifts, the machine was dug up, repaired on site, and flown out in an operation costing $20 million.
The rescue of sheep from snowdrifts is a task normally undertaken by the farmers themselves.
In certain conditions it may help to form snowdrifts.
Last week, when we should have been sowing our spring crops, we had—this is no exaggeration—nine-foot snowdrifts and no electricity for four days.
However, in some areas authorities are willing to accept faxed copies when people face snowdrifts and terrible weather.