hydrology
hyd·ro·logy
noun
1.
the branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation
Origin
From hydro- + -ology.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.