hadadaPronunciation: /ˈhɑːdədɑː/ (also hadeda, hadada ibis)Definition of hadada noun a large grey-brown African ibis with iridescent patches on the wings and a loud, harsh call. Bostrychia (or Hagedashia) hagedash, family Threskiornithidae Origin: late 18th century: imitative of its callhadada in other Oxford dictionaries Definition of hadada in the US English dictionary