hydrography
1. [ noun ] the science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation
Related terms: oceanography
Similar spelling:   hydrographic
  hydrographical
  hydrocephaly
  hydrosphere
  Hydrozoa
  hydrogen
  hydrogel
  Hydrochoerus
  hydrozoan
  hydrogen_atom
  hydrocephalus
  hydrocephalic
  hydrazine
  Hydrastis