Sand drift (4)
I believe the answer is:
dune
(Other definitions for dune that I've seen before include "Sandhill" , "Ridge of sand created by wind" , "Coastal sand hill" , "Seashore sand hill" , "Low hill of sand, called in a desert a barkhan" .)
I believe the answer is:
dune
(Other definitions for dune that I've seen before include "Sandhill" , "Ridge of sand created by wind" , "Coastal sand hill" , "Seashore sand hill" , "Low hill of sand, called in a desert a barkhan" .)