See Also: Ichthyornis(medicine)
ichthyornis(dictionary)

ichthyornis (iou)



ichthyornis noun. L19.
[mod. Latin, from ICHTHYO- + Greek ornis bird: the bird was orig. thought to have had teeth.]
An extinct gull-like bird of Cretaceous times characterized by amphicoelous dorsal vertebrae like those of a reptile.