English version

weather vane in Meteorology topic

From Longman Dictionary of Contemporary Englishweather vaneˈweather vane noun [countable]  DHWEATHERa metal object fixed to the top of a building that blows around to show the direction the wind is coming from
Examples from the Corpus
weather vaneThe strange, fixed weather vane that stands in the lee of the vicarage at Rennes-le-Chateau.