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Meaning of reef knoll | Babel Free

Noun CEFR B2

Definitions

A geological formation composed of a substantial accumulation of calcareous material, remnants of ancient sea floors where reefs and organic concentrations once thrived.

CEFR level

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

See also

reef knot reef line reef point reef rash reef shark reef squid

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