- 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.
Origin of hydrography
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for hydrography
A deep mass of waters; in hydrography it was synonymous with gulf.The Sailor's Word-Book
William Henry Smyth
It was the first voyage which had not hydrography alone for its object.Celebrated Travels and Travellers
All the hydrography of south-eastern England presents this peculiarity.The Old Road
In 1713 he was appointed to succeed his father as professor of hydrography.
In 1793 he became professor of hydrography at Collioure and Port-Vendre.
- the study, surveying, and mapping of the oceans, seas, and riversCompare hydrology
- the oceans, seas, and rivers as represented on a chart
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for hydrography
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.
- The mapping of bodies of water.
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