Geology

/dʒiˈɒl.ə.dʒi/

Meaning & Definition

noun
the scientific study of the Earth, its structure, composition, and processes, including the study of rocks, minerals, and the history of the Earth.
She decided to major in geology because of her fascination with the formation of mountains.
the geologic features of a region or the study of the physical history of the planet.
The geology of the area is marked by ancient volcanic activity.
a field of science that deals with the Earth's physical structure and substance.
Understanding geology is essential for evaluating natural resources.
the study of the Earth's history as recorded in rocks and layers of sediment.
The team's research in geology revealed significant information about past climate changes.

Etymology

From the Greek 'geo' meaning 'Earth' and 'logia' meaning 'study of'.

Common Phrases and Expressions

geological time
Refers to the vast time scale used by geologists that includes the age of the Earth and the timing of geological events.
stratigraphic column
A graphic representation of the layers of rock in a specific geological area.
geological survey
An investigation of the geological characteristics of a particular area.

Related Words

lithology
The study of the physical and chemical characteristics of rocks.
paleontology
The study of the history of life on Earth through the examination of plant and animal fossils.
sedimentology
The study of sediments, sedimentary rocks, and the processes of their formation.

Slang Meanings

Rock hound
He's such a rock hound; he spends every weekend collecting interesting rocks.
Dirt geek
As a dirt geek, she knows all the different types of soil and their properties.