Definition of hydrology
: a science dealing with the properties, distribution, and circulation of water on and below the earth's surface and in the atmosphere
Buying Guide
Encourage future scientists with science kits selected by our Reviews team.
Test Your Vocabulary
Name That Color
-
- Name that color:

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share hydrology
Time Traveler for hydrology
The first known use of hydrology was in 1762
See more words from the same year