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Meaning of proavian | Babel Free

Noun CEFR B2

Definitions

Any of several extinct animals proposed as an evolutionary link between fossil reptiles and fossil birds; a protobird.

CEFR level

B2

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

See also

Proavis proazaphosphatrane Prob Prob. prob'ly proba