or wind sock
[ wind-sok ]
/ ˈwɪndˌsɒk /
a tapered, tubular cloth vane, open at both ends and having at the larger end a fixed ring pivoted to swing freely, installed at airports or elsewhere to indicate wind direction and approximate intensity.
Also called air sleeve, air sock, wind cone, wind sleeve.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for windsock
/ (ˈwɪndˌsɒk) /
a truncated cone of textile mounted on a mast so that it is free to rotate about a vertical axis: used, esp at airports, to indicate the local wind directionAlso called: air sock, drogue, wind sleeve, wind cone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for windsock
Online Etymology Dictionary, © 2010 Douglas Harper