n.
The scientific study of the properties, distribution, and effects of water on the earth's surface, in the soil and underlying rocks, and in the atmosphere.
hydrologic hy'dro·log'ic (-drə-lŏj'ĭk) or hy'dro·log'i·cal adj.
hydrologically hy'dro·log'i·cal·ly adv.
hydrologist hy·drol'o·gist n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
