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.

Definitions of fossilize

v convert to a fossil

“The little animals fossilized and are now embedded in the limestone”
lapidify, petrify
change into stone
Type of:
change the nature, purpose, or function of something

v become mentally inflexible

Type of:
age, get on, maturate, mature, senesce
grow old or older

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