mechanical device attached to an elevated structure; rotates freely to show the direction of the wind
source: WordNet 3.0
a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it
source: WordNet 3.0
flat surface that rotates and pushes against air or water
source: WordNet 3.0
the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
source: WordNet 3.0
A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely.