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[hahy-drol-uh-jee] /haɪˈdrɒl ə dʒi/
the science dealing with the occurrence, circulation, distribution, and properties of the waters of the earth and its atmosphere.
hydrogeology; geohydrology.
Origin of hydrology
1755-65; hydro-1 + -logy
Related forms
[hahy-druh-loj-ik] /ˌhaɪ drəˈlɒdʒ ɪk/ (Show IPA),
hydrological, adjective
hydrologically, adverb
hydrologist, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hydrology
  • Forests provide myriad other benefits, especially in hydrology and by hosting millions of species.
  • Appointment to them now requires some knowledge of engineering and hydrology, not simply a friend in politics.
  • The logical solution would be to update the formula, to take account of half a century's worth of hydrology.
  • Many types of plants exist in permafrost regions, depending on the climate and hydrology.
  • hydrology is the aspect of geology which studies water.
  • Basin dynamics continue to impact regional hydrology.
  • Actually, it is a widely understood problem in geophysics, hydrology and elsewhere.
  • The surface hydrology, humidity regime and nutrient cycles are disrupted.
  • She does research and teaches at the intersection of hydrology and geomorphology.
  • There is a renewed interest among students in going back to geology, hydrology.
British Dictionary definitions for hydrology


the study of the distribution, conservation, use, etc, of the water of the earth and its atmosphere, particularly at the land surface
Derived Forms
hydrologic (ˌhaɪdrəˈlɒdʒɪk), hydrological, adjective
hydrologically, adverb
hydrologist, noun
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
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Word Origin and History for hydrology

1762, from hydro- + -logy. Related: Hydrologist; hydrological (1660s).

Online Etymology Dictionary, © 2010 Douglas Harper
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hydrology in Science
The scientific study of the properties, distribution, and effects of water as a liquid, solid, or gas on the Earth's surface, in the soil and underlying rocks, and in the atmosphere.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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