broadbillPronunciation: /ˈbrɔːdbɪl/Definition of broadbill noun 1a small, colourful bird of the Old World tropics, with a stocky body, a large head, and a flattened bill with a wide gape. Family Eurylaimidae: several genera 2chiefly North American a bird with a broad bill, especially a duck such as the shoveler or the scaup. broadbill in other Oxford dictionaries Definition of broadbill in the US English dictionary