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English definition of “fossil”

fossil

noun [C] uk   /ˈfɒs.əl/ us    /ˈfɑː.səl/

fossil noun [C] (IN ROCK)

the shape of a bone, a shell, or a plant or animal that has been preserved in rock for a very long periodPalaeontology and fossils

fossil noun [C] (PERSON)

informal humorous an old person, especially one who will not accept new ideasPeople who are boring and old-fashioned
(Definition of fossil from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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