a. [ Gr. 'o`rnis, 'o`rniqos, a bird. ] Of or pertaining to birds; as, ornithic fossils. Owen. [ 1913 Webster ]

n. [ Ornitho- + Gr. 'i`chnos track. ] (Paleon.) The footmark of a bird occurring in strata of stone. Hitchcock. [ 1913 Webster ]

n. [ Ornitho- + ichnology. ] (Paleon.) The branch of science which treats of ornithichnites. Hitchcock. [ 1913 Webster ]