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Definition of Protoavis
1. Noun. Most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbs.
Lexicographical Neighbors of Protoavis
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1. Noun. Most primitive avian type known; extinct bird of the Triassic having bird-like jaw and hollow limbs and breastbone with dinosaur-like tail and hind limbs.