ar·​chae·​or·​nis | \ ˌärkēˈȯrnə̇s \

Definition of archaeornis

1 capitalized : a genus of Upper Jurassic birds (subclass Archaeornithes) having a long feathered tail, showing reptilian characteristics in the absence of a bill, presence of teeth in the jaws, and on the wings three free digits with claws
2 plural -es : a bird or fossil of the genus Archaeornis

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First Known Use of archaeornis

1927, in the meaning defined at sense 1

History and Etymology for archaeornis

New Latin, from archae- + -ornis

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The first known use of archaeornis was in 1927

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Cite this Entry

“Archaeornis.” Dictionary, Merriam-Webster, Accessed 8 Aug. 2020.

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