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

As a researcher of glacial geology, Cotter often comes in contact with Cretaceous deposits and shark teeth and communicates with the public about sharks. —Carlyn Kranking, Smithsonian Magazine, 17 Sep. 2024

Introduction Contributing Writer September 12, 2024 geology geophysics physics planetary science All topics (opens a new tab) On September 16, 2023, the world began to rumble. —Robin George Andrews, Quanta Magazine, 12 Sep. 2024

Operational since 2012, Curiosity has been on a mission to study Mars’ climate and geology and initially assessed whether the Gale Crater ever offered conditions favorable for microbial life. —Max Bennett, Discover Magazine, 23 July 2024

The Driftless Area's geology is why cave tours can be enjoyed within a few hours' drive from the Twin Cities. —Kyle Stokes, Axios, 21 July 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