[ 'vɛntɪfakt ]
■ noun Geology a stone shaped by the erosive action of wind-blown sand.
Origin
early 20th cent.: from L. ventus 'wind' + fact- , facere 'make'.
VENTIFACT
Meaning of VENTIFACT in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004