weathercock Syllabification: (weath·er·cock)Pronunciation: /ˈweT͟Hərˌkäk/Translate weathercock | into French | into German | into Italian | into Spanish Definition of weathercock noun a weathervane in the form of a rooster. verb [no object] (of a boat or aircraft) tend to turn its head into the wind; gripe. weathercock in other Oxford dictionaries Definition of weathercock in the British & World English dictionary