n. [ Gr. 'o`rnis, 'o`rniqos, a bird + te`mnein to cut. ] The anatomy or dissection of birds. [ 1913 Webster ]
n. [ Ornitho- + -logy: cf. F. ornithologie. ] 1. That branch of Zoology which treats of the natural history of birds and their classification. [ 1913 Webster ]
2. A treatise or book on this science. [ 1913 Webster ]