Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun protoavis
1 sense of protoavis
Sense 1
protoavis -- (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)
=> bird -- (warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings)