the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.
those parts of a map, collectively, that represent surface waters.

1550–60; hydro-1 + -graphy

hydrographer, noun
hydrographic [hahy-druh-graf-ik] , hydrographical, adjective
hydrographically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To Hydrographer
World English Dictionary
hydrography (haɪˈdrɒɡrəfɪ)
1.  Compare hydrology the study, surveying, and mapping of the oceans, seas, and rivers
2.  the oceans, seas, and rivers as represented on a chart

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
hydrography   (hī-drŏg'rə-fē)  Pronunciation Key 
  1. The scientific description and analysis of the physical characteristics of Earth's surface waters, including temperature, salinity, oxygen saturation, and the chemical content of water. Oceanography (the study of saltwater bodies) and limnology (the study of freshwater bodies) are subsets of hydrography.

  2. The mapping of bodies of water.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Related Words
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature