Definition of orohydrographical in English:

orohydrographical

Pronunciation /ˌɒrəʊhʌɪdrəˈɡrafɪkl/ /ˌɔːrəʊhʌɪdrəˈɡrafɪkl/

adjective

Geography
  • Of or belonging to orohydrography; relating to the hydrographic features of a region as they are influenced by mountains.

Origin

Mid 19th century; earliest use found in Journal of the Royal Geographical Society of London. From oro- + hydrographical.