geology

noun

ge·​ol·​o·​gy jē-ˈä-lə-jē 

plural geologies

1

a

: a science that deals with the history of the earth and its life especially as recorded in rocks

b

: a study of the solid matter of a celestial body (such as the moon)

2

: geologic features

the geology of Arizona

3

: a treatise on geology

geologist

jē-ˈä-lə-jist 

noun

Examples of geology in a Sentence

learning about the geology of Hawaii

Recent Examples on the Web

Astronauts spots geology of Utah Friday, August 9, 2024: Astronauts aboard the International Space Station (ISS) have captured a stunning image of the Upper Lake Powell region of Utah. —Space.com Staff, Space.com, 1 Jan. 2025

Providing a vehicle through which consumers can understand the geography, geology and microclimate of specific areas of the appellation certainly cultivates a greater understanding of and appreciation for the wines. —Paul Caputo, Forbes, 13 Dec. 2024

Winona County adopted its animal cap ordinance in 1998 to balance the interests of farmers with the risks industrial agricultural practices pose to groundwater, specifically nitrate contamination, in the region’s porous karst geology. —John Molseed, Twin Cities, 10 Dec. 2024

His work has appeared in publications including Science News, Science, Nature, and Scientific American. paleontology anthropology archaeology geology 1 free article left Want More? —Paul Smaglik, Discover Magazine, 28 Nov. 2024

Word History

Etymology

New Latin geologia, from ge- + -logia -logy

First Known Use

1735, in the meaning defined at sense 1a

Kids Definition

geology

noun

ge·​ol·​o·​gy jē-ˈäl-ə-jē 

plural geologies

1

a

: a science that deals with the history of the earth and its life especially as recorded in rocks

b

: a study of the features of a heavenly body (as the moon)

2

: the geologic features (as mountains or plains) of an area

geologic

ˌjē-ə-ˈläj-ik

adjective

or geological

-i-kəl

geologically

-i-k(ə-)lē

adverb

geologist

jē-ˈäl-ə-jəst 

noun