IPA: /ˈwɪndˌslæb/
KK: /wɪndslæb/
A large piece of snow that can break off and slide down a slope, often creating a risk of avalanches.
The skiers were warned about the unstable windslab on the mountain.
The word 'windslab' is formed from 'wind' (from Old English 'wind', meaning air in motion) and 'slab' (from Old English 'slæb', meaning a flat piece or layer). The term 'windslab' refers to a flat layer of snow or ice that has been compacted by the wind.
Think of 'wind' as air in motion and 'slab' as a flat layer — together, they describe a flat layer formed by the wind.
No commonly confused words.