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Meaning of Proavis | Babel Free

Noun CEFR B1

Definitions

Any of various hypothetical extinct species or taxa that were coined in the early 20th century in an attempt to support and explain the hypothetical evolutionary steps and anatomical adaptations leading from non-avian theropod dinosaurs to birds.

CEFR level

B1
Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.
See all B1 English words →

See also

proazaphosphatrane Prob Prob. prob'ly proba probabilification

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