Or"o*graph (?), n. [Gr. &?; 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.

Or"o*graph (?), n. [Gr. &?; 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.