| Noun | 1. | family Coraciidae - rollers bird family - a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings Coraciiformes, order Coraciiformes - rollers; kingfishers; hornbills; hoopoes; motmots; bee eaters; todies roller - Old World bird that tumbles or rolls in flight; related to kingfishers Coracias, genus Coracias - type genus of the Coraciidae |