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Meaning of weathercock

weath•er•cock

Pronunciation: (we'ur-kok"), [key]
— n.
  1. a weather vane with the figure of a rooster on it.
  2. (loosely) any weather vane.
  3. a person who readily adopts the latest fads, opinions, etc.: The count is the weathercock of the jet set.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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