Weathercock n. : A vane, or weather vane; -- so called because originally often in the figure of a cock, turning on the top of a spire with the wind, and showing its direction.

Weathercock n. : Hence, any thing or person that turns easily and frequently; one who veers with every change of current opinion; a fickle, inconstant person.

Weathercock v. t. : To supply with a weathercock; to serve as a weathercock for.

Example:


Taxonomy
weather vane, New York, wind vane, wind, wind direction, pointers, Whirligigs, weathercock, world's largest, American Folk Art, free encyclopedia, instrument, design, arrows, sock, History, windsock, the Weather Vane.

Defination from the web:
Weathercock) Jump to: navigation, search. Weather cock on a church in Norway. A weather vane, also known as a wind vane or weathercock, is an instrument for showing the direction of the wind. ...