A tapered, open-ended sleeve pivotally attached to a standard, that indicates the direction of the wind blowing through it. Also called air sock, wind cone, wind sleeve.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "windsock" in a sentence
"In the interview Spinrad described it as a giant "windsock," and notes that Gene Roddenberry (Trek's producer/creator) apologized that this was the best they could do with no budget left."
"That's bigger than the K-cup "windsock" launched by Selfridges department store in"
"They were misreading it also out of an identical dismissive miscalculation: They noticed only a flapping windsock and not the incalculable gale behind it."