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

Learn about flora, fauna, pioneer history and the interesting geology of Brown County State Park. —Karl Schneider, The Indianapolis Star, 20 June 2024

Among them was a team of 21 expedition specialists who would prove to be the most critical element of this trip: experts who imparted their wisdom in an array of fields, from marine biology and anthropology to astronomy and geology. —Marcia Desanctis, Travel + Leisure, 19 June 2024

Environmentalists say the Hillcrest amendment inappropriately would allow a higher home-per-acre density, a greater percentage of impervious surface, too little open space and insufficient protection for wetlands and the underlying geology that funnels rain water to the Wekiva’s array of springs. —Kevin Spear, Orlando Sentinel, 16 June 2024

Its mission was to study the geology and environment of Mars. —The Arizona Republic, 6 Apr. 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