jackdawPronunciation: /ˈdʒakdɔː/Translate jackdaw | into French | into German | into Italian | into Spanish Definition of jackdaw noun a small grey-headed crow that typically nests in tall buildings and chimneys, noted for its inquisitiveness. Genus Corvus, family Corvidae: two species, in particular the Eurasian C. monedula jackdaw in other Oxford dictionaries Definition of jackdaw in the US English dictionary