n. [ Gr. 'o`ros mountain + -graph. ] (Surveying) A machine for use in making topographical maps. It is operated by being pushed across country, and not only records distances, like the perambulator, but also elevations. [ Webster 1913 Suppl. ]
n. [ Gr. 'o`ros, a mountain + -graphy. ] That branch of science which treats of mountains and mountain systems; orology; as, the orography of Western Europe. [ 1913 Webster ]