geologist
UK: dʒiˈɒlədʒɪst | US: dʒiˈɑːlədʒɪst
n. a scientist who studies the solid and liquid matter that constitutes the Earth, including rocks, minerals, and landforms.
The word "geologist" combines the Greek root "geo-" (meaning "earth") with "-logist" (derived from "logos," meaning "study" or "discourse"). The term emerged in the early 19th century as geology became a formal scientific discipline. "Geo-" appears in many Earth-related terms (e.g., geography, geometry), while "-logist" denotes a specialist in a field (e.g., biologist, psychologist). The fusion reflects the scientific study of Earth's physical structure and history.
The geologist examined the rock layers to determine their age.
As a geologist, she specializes in volcanic activity.
The team of geologists discovered a new mineral deposit.
His dream is to become a geologist and study earthquakes.
The geologist used a hammer to collect samples from the cliff.