fossil

US /ˈfɑsəl/

UK /'fɒsl/

B1
n. (c./u.)Noun (Countable/Uncountable)Plant or animal that became rock after many years
We can learn about the past by looking at this fossil from the museum
n. (c./u.)Noun (Countable/Uncountable)A person or thing that is outdated or no longer useful.
He's a fossil in the company, stuck in his old ways.
adj.AdjectiveRelating to or resembling a fossil.
The fossil record provides valuable insights into the history of life on Earth.
adj.AdjectiveRelating to or denoting energy generated from fossil fuels.
The company's fossil technology was holding it back.

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