1. columbiform bird a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes
  2. coraciiform bird chiefly short-legged arboreal nonpasserine birds that nest in holes
  3. cuculiform bird birds having zygodactyl feet (except for the touracos)
  4. Columbiformes sand grouse; pigeons; doves; extinct dodos and solitaires
  5. Colymbiformes grebes
  6. caprimulgiform bird long-winged nonpasserine birds
  7. columniform having the form of a column
  8. passeriform bird perching birds mostly small and living near the ground with feet having 4 toes arranged to allow for gripping the perch; most are songbirds; hatchlings are helpless
  9. anseriform bird chiefly web-footed swimming birds
  10. apodiform bird nonpasserine bird having long wings and weak feet
  11. Columbia River a North American river
  12. piciform bird any of numerous nonpasserine insectivorous climbing birds usually having strong bills for boring wood
  13. pelecaniform seabird large fish-eating seabird with four-toed webbed feet
  14. columbarium a sepulchral vault or other structure having recesses in the walls to receive cinerary urns
  15. climbing hempweed herb of tropical America having vanilla-scented flowers
  16. columbian mammoth a variety of mammoth
  17. umbrella bird black tropical American bird having a large overhanging crest and long feathered wattle
  18. platform bed a bed without springs
  19. gaviiform seabird seabirds of the order Gaviiformes
  20. podicipitiform seabird aquatic birds related to the loons