orograph


From The Collaborative International Dictionary of English v.0.48:

Orograph \Or"o*graph\, 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.] Orographic
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