fossilize

verb

fos·​sil·​ize ˈfä-sə-ˌlīz How to pronounce fossilize (audio)
fossilized; fossilizing

transitive verb

1
: to convert into a fossil
2
: to make outmoded, rigid, or fixed

intransitive verb

: to become changed into a fossil
fossilization noun

Examples of fossilize in a Sentence

The mud helped to preserve and fossilize the wood.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The Petoskey and Charlevoix stones are fossilized pre-historic coral that is roughly 350 million years during the Devonian Age. Jalen Williams, Freep.com, 27 July 2025 As a result, droppings from centuries ago were often fossilized, waiting to be found in caves. New York Times, 25 July 2025 One fist-sized rock held over a thousand microscopic fossils, including soft-bodied animals that are rarely fossilized, John wrote. Shaun McKinnon, AZCentral.com, 5 Aug. 2025 To discern whether a mammal had a placenta, a pouch, or something else entirely, researchers have to look at other placental mammals and compare features that do fossilize, for example, the teeth or the morphology of the body. Sara Novak, Discover Magazine, 19 July 2025 See All Example Sentences for fossilize

Word History

First Known Use

1794, in the meaning defined at transitive sense 1

Time Traveler
The first known use of fossilize was in 1794

Browse Nearby Words

Cite this Entry

“Fossilize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fossilize. Accessed 22 Aug. 2025.

Kids Definition

fossilize

verb
fos·​sil·​ize ˈfäs-ə-ˌlīz How to pronounce fossilize (audio)
fossilized; fossilizing
: to change or become changed into a fossil
fossilization noun

More from Merriam-Webster on fossilize

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!