weather vane

English Thesaurus

1. mechanical device attached to an elevated structure; rotates freely to show the direction of the wind (noun.artifact)

hypernym	:	mechanical device,
definition	:	mechanism consisting of a device that works on mechanical principles (noun.artifact)

hyponym	:	weathercock,
definition	:	weathervane with a vane in the form of a rooster (noun.artifact)

hyponym	:	wind tee,
definition	:	weather vane shaped like a T and located at an airfield (noun.artifact)