Geology (noun)

1. The scientific study of the Earth, including its structure, composition, history, and the processes that shape it.
2. The study of the Earth's structure, composition, and history.
3. The natural science of the earth's solid matter, its waters, air, and life.

Origin:

From french géologie and from latin geologia and from greek geologia and from ge- + logos "study".

Examples:

1. The study of geology is essential for understanding natural disasters such as earthquakes and volcanic eruptions.
2. Geology is the study of the Earth and its history, including the formation and change of rocks and landforms.
3. Geology plays a vital role in the exploration and production of natural resources such as oil, gas, and minerals.
4. The geology of the area provided important information for the construction of the dam.
5. The geology department at the university offers courses on mineralogy, petrology, and geophysics.