avian dinosaur

noun
plural avian dinosaurs

Definition of avian dinosaur

: a bird when considered as the survivor of a lineage of theropod dinosaurs … thanks to a heap of lovely fossils, we now know that even the most fearsome of the tyrant dinosaurs were closely related to the avian dinosaurs—the birds that flit around our backyards today.— Brian Switek Hardly the embodiment of obsolescence, more than eighteen thousand species of avian dinosaurs flit, trod, and swim about our planet today.— Kenneth Lacovara — compare non-avian dinosaur

First Known Use of avian dinosaur

1999, in the meaning defined above

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The first known use of avian dinosaur was in 1999

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Cite this Entry

“Avian dinosaur.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/avian%20dinosaur. Accessed 23 Apr. 2021.

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