weathervane

/ˌwɛðərˈveɪn/

Other forms: weathervanes

Definitions of weathervane

1. noun

   mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
   synonyms: vane, weather vane, wind vane

   types:

   weathercock

   weathervane with a vane in the form of a rooster

   wind tee

   weather vane shaped like a T and located at an airfield

   type of:

   mechanical device

   mechanism consisting of a device that works on mechanical principles