Hydrology (noun)

The branch of science that deals with the study of water, its properties, distribution, and movement on the Earth's surface and underground.

Origin:

The word "hydrology" is derived from the greek word "hydro" meaning "water" and "logos" meaning "study of" and was first used in the early 19th century to describe the branch of science that deals with the study of water, its properties, distribution, and movement on the earth"s surface and underground.

Examples:

1. Hydrology is an important field of study for understanding and managing water resources.
2. Hydrologists study the movement, distribution, and quality of water on Earth, including its relationship with the atmosphere, land, and living things.
3. A hydrologist's work is crucial for understanding and managing water resources, and for predicting floods and droughts.
4. The hydrologist was measuring the water flow in the river to determine the potential for flooding.
5. The hydrology of the area was complex and affected by various factors such as precipitation, evaporation, and human activity.