geologic
Americanadjective
Other Word Forms
Etymology
Origin of geologic
Explanation
Anything that's geologic has something to do with the structure of the Earth and the way it has changed over time. Scientists who study geologic features — including rocks in the earth's crust, volcanoes, sandy beaches, and all the other non-living things that make up our planet — are called geologists. If you're interested in geologic formations like the long, pointy mineral deposits that grow in caves, stalagmites and stalactites, you might consider a geologic career path too! Geologic is from geology and its Greek roots geo, "earth," and -logia, "a science."
Vocabulary lists containing geologic
Earth Science - Middle School
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Earth Science - High School
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
geo
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
America has no permanent geologic storage anywhere for spent fuel.
From The Wall Street Journal ● Oct. 9, 2026
To investigate the relationship between the faults, Goldfinger and his colleagues studied deep sea sediment cores containing about 3,100 years of geologic history.
From Science Daily ● Sep. 24, 2026
"Now we have empirical evidence using this geologic thermometer," Chiarenza said.
From Science Daily ● Sep. 20, 2026
Susanville, the spot on the map, is an immutable intermingling of unique geologic formations.
From Los Angeles Times ● Sep. 13, 2026
This suffering allowed them no rest; it was simple but relentless as a geologic cycle.
From "Typical American" by Gish Jen
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.