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Meaning of index fossil | Babel Free

Noun CEFR B2

Definitions

Any ancient remains of a plant or animal that lived during a specific geological period and that can be used to date the containing rocks.

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

index fund index of suspicion index patient index register index rerum index term