a device, as a rod to which a freely rotating pointer is attached, for indicating the direction of the wind.
Words nearby weather vane
Origin of weather vane
First recorded in 1715–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for weather vane
a vane designed to indicate the direction in which the wind is blowing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012