Synonyms

geologic

American

[jee-uh-loj-ik] / ˌdʒi əˈlɒdʒ ɪk /

Also geological

adjective

of, relating to, or based on geology.

Other Word Forms

geologically adverb
nongeologic adjective
nongeological adjective
nongeologically adverb
pregeological adjective
ungeological adjective
ungeologically adverb

Etymology

Origin of geologic

First recorded in 1790–1800; geolog(y) + -ic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rapid drawdown caused damage to the geologic sites around the Gulf Coast where the oil is stored.

From The Wall Street Journal • Mar. 9, 2026

Much of that growth came from unconventional drilling, including hydraulic fracturing and horizontal drilling from geologic formations such as shale rock.

From MarketWatch • Feb. 16, 2026

The region has long been prized by chemical companies for its geologic features.

From Barron's • Nov. 7, 2025

The Antiquities Act of 1906 gives presidents the authority to designate monuments to protect “objects of historic and scientific interest” and can encompass geologic wonders, archaeological sites and wildlife habitat.

From Los Angeles Times • Mar. 7, 2025

Mullineaux would later tell a Senate committee that “the lateral blast extended about three times farther than any such blast recorded by the geologic history of the volcano.”

From "Mountain of Fire" by Rebecca E. F. Barone

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023