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Neornithes

plural noun
Ne·​or·​ni·​thes | \nēˈȯrnəˌthēz, ˌnēˌȯrˈnī(ˌ)thēz\

Definition of Neornithes 

: a subclass of birds comprising all recent and fossil birds except the Archaeornithes

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Other Words from Neornithes

neornithic \ ¦nēˌȯr¦nithik \ adjective

History and Etymology for Neornithes

New Latin, from ne- + -ornithes

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