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(Physical Geography) a vane designed to indicate the direction in which the wind is blowing
a device, as a rod to which a freely rotating pointer is attached, to indicate the direction of wind.
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|Noun||1.||weather vane - mechanical device attached to an elevated structure; rotates freely to show the direction of the wind|
mechanical device - mechanism consisting of a device that works on mechanical principles
weathercock - weathervane with a vane in the form of a rooster
wind tee - weather vane shaped like a T and located at an airfield