1. (

• weathervane ,
• weather_vane ,
• vane ,
• wind_vane

) mechanical device attached to an elevated structure; rotates freely to show the direction of the wind ;

2. (

• vane ,

) a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it ;

3. (

• blade ,
• vane ,

) flat surface that rotates and pushes against air or water ;

4. (

• vane ,
• web ,

) the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft ;