| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024pro•to•a•vis (prō′tō ā′vis),USA pronunciation n. - Paleontologya fossil bird of the genus Protoavis, from the Triassic Period, having a birdlike, partly toothless jaw structure, a tail and hind legs resembling those of the dinosaur, and the hollow bones and keellike breast that are characteristic of modern birds: the oldest known avian type, preceding the archaeopteryx by an estimated 75 million years.
- Neo-Latin (1986), equivalent. to Greek proto- proto- + Latin avis bird
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