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wind direction indicator
avia., Canada	manche à vent
life.sc., tech.	indicateur de direction du vent
transp.	indicateur de direction de vent
English thesaurus
wind direction indicator
avia., Canada	An indicator that is in the form of a truncated cone made of fabric and that is not less than 12 ft long and, at the larger end, not less than 3 ft in diameter, so constructed as to give a clear indication of the direction of surface wind and a general indication of wind speed; An actuated device for indicating visually to aircraft the direction of surface wind
Wind Direction Indicator
meteorol., abbr.	WDI