Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The branch of geology that deals with the occurrence, distribution, and effect of ground water.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The geology of groundwater, especially concerning the physical, biological and chemical properties of its occurrence and movement.

from The Century Dictionary and Cyclopedia

  • n. The geology of water; that part of geological science which has to do with the relations of water standing or flowing beneath the surface of the earth.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

hydro- +‎ geology

Examples

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