columbiform bird co·lum·bi·formbird uncommon noun 1. a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes Synonymscolumbiform bird Related words Broader terms gallinaceous bird Narrower terms dodosolitairepigeonsandgrouse Parts Columbiformes WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.