wind sleeve

Noun	1.	wind sleeve - a truncated cloth cone mounted on a mast; used (e.g., at airports) to show the direction of the wind Synonyms: air sock, wind cone, windsock, drogue, sock
	2.	wind sleeve - truncated cloth cone used to indicate wind direction Synonyms: air sleeve, wind sock, air sock

air sock, drogue, sock, visual signal, wind cone, windsock