spoonbill Syllabification: (spoon·bill)Pronunciation: /ˈspo͞onˌbil/Definition of spoonbill noun a tall mainly white or pinkish wading bird related to ibises, having a long bill with a very broad flat tip. Genera Platalea and Ajaia, family Threskiornithidae: several species spoonbill in other Oxford dictionaries Definition of spoonbill in the British & World English dictionary