fossilize
Americanverb (used with object)
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Geology. to convert into a fossil; replace organic with mineral substances in the remains of an organism.
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to change as if into mere lifeless remains or traces of the past.
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to make rigidly antiquated.
Time has fossilized such methods.
verb (used without object)
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to become a fossil or like a fossil.
The plant fossilized in comparatively recent geologic time.
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Linguistics. (of a linguistic form, feature, rule, etc.) to become permanently established in the interlanguage of a second-language learner in a form that is deviant from the target-language norm and that continues to appear in performance regardless of further exposure to the target language.
verb
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to convert or be converted into a fossil
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to become or cause to become antiquated or inflexible
Other Word Forms
Etymology
Origin of fossilize
Explanation
When something fossilizes, it becomes a fossil, meaning it leaves an impression in the Earth that far outlives the organism. Fossils are remnants left in rock of a living creature: the remnants have been petrified over many years and they leave an impression of what the animal was like. Fossilizing is a word for this process, which happens slowly over time. If dinosaurs had not fossilized, we wouldn't know much about what dinosaurs were like. The most likely parts of a creature to fossilize are hard parts like bones and shells.
Vocabulary lists containing fossilize
Awkward
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Primates
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Charlie and the Great Glass Elevator
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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.
See Examples For:
The possibility of strangers allowing marinara to fossilize on my favorite saucepan is among the many reasons I’ve never considered entering the vacation rental business.
From Salon ● Oct. 28, 2026
Frogs, toads, and salamanders have delicate skeletons that do not fossilize easily, so their remains are uncommon in the fossil record outside asphaltic sites such as La Brea Tar Pits.
From Science Daily ● Aug. 16, 2026
Behl is testing the chemical and mineral composition of the fossil blocks, hoping scientists can learn more about these prehistoric environments including the atmosphere and the conditions that enabled animal remains to fossilize.
From Los Angeles Times ● Sep. 13, 2024
My mom emigrated from South Korea in 1967, bringing a set of flavors, techniques and recipes that would fossilize from that moment.
From Washington Post ● Apr. 9, 2023
If she kept changing, she could never fossilize into the thing their father had become .
From "Blood of Olympus" by Rick Riordan
Scientists could examine fossilized skulls from ancient jawless fish for anatomical evidence that might help establish whether these early animals possessed an optic chiasm and optic tectum.
From Science Daily ● Nov. 4, 2026
Its fossilized remains were recovered from Wadi Moghra in northern Egypt, making it the first definitive fossil ape ever discovered in North Africa.
From Science Daily ● Nov. 1, 2026
Researchers are also studying fossilized amber, dinosaur scales and bones from other dinosaurs.
From Science Daily ● Sep. 24, 2026
Museum paleontologists excavated some 70% of Thomas’s fossilized skeleton in the early 2000s, making it one of the most complete T. rex specimens ever found.
From Los Angeles Times ● Sep. 16, 2026
Other bones and fossilized footprints were found in the Connecticut River Valley of New England after a farm boy named Plinus Moody spied ancient tracks on a rock ledge at South Hadley, Massachusetts.
From "A Short History of Nearly Everything" by Bill Bryson
The world-renowned site features iron carbonate concretions that formed some 309 million years ago, fossilizing within them ancient creatures that had once thrived in the area's lush swamps, shallow seas and river deltas.
From Barron's ● Jun. 18, 2026
The challenges associated with fossilizing soft tissues make the trilobites Losso studied even more special.
From Science Daily ● Dec. 21, 2023
Fish skeletons — even after fossilizing — retain records of an animal's growth, which depends on seasonal food availability.
From Scientific American ● Feb. 23, 2022
After his summer of fossilizing, Grinnell worked for his father’s securities-trading firm in New York and then as an aide to Marsh in New Haven.
From Washington Post ● Jul. 18, 2019
I see," said Miriam mischievously, "you think that sculpture should be a sort of fossilizing process.
From The Marble Faun - Volume 1 The Romance of Monte Beni by Nathaniel Hawthorne
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
