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

For example, Joslin said an upcoming dinosaur program will be presented by MC Rose, a naturalist with a geology degree. —Debra Skodack, Kansas City Star, 17 Jan. 2025

His work has appeared in publications including Science News, Science, Nature, and Scientific American. geology earth science 1 free article left Want More? —Paul Smaglik, Discover Magazine, 3 Jan. 2025

And, in certain places, geology and geography mean these compounds exist in higher background concentrations to begin with, says Bukalski. —Lauren Leffer, Popular Science, 27 Nov. 2024

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

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