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

The prime underlying geology allows for CO2 to be stowed into a porous, sponge-like rock layer and confined by the less porous rock above. —Peyton Haug, Twin Cities, 13 Dec. 2024

Now an influential name in the industry, Vincent’s journey began in a different realm: geology. —Kody Boye, USA TODAY, 12 Dec. 2024

His work has appeared in publications including Science News, Science, Nature, and Scientific American. paleontology geology 0 free articles left Want More? —Paul Smaglik, Discover Magazine, 5 Nov. 2024

While space scientists today still argue about Pluto’s rightful place in the pantheon of planets—some say its geology is as rich as that of any planet—no one can deny its scientific intrigue. —Shi En Kim, Smithsonian Magazine, 22 Oct. 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