plural noun
Din·​or·​nith·​i·​dae | \ ˌdīˌnȯrˈnithəˌdē\

Definition of Dinornithidae

: a family of extinct ratite birds that are related to the emus and cassowaries though usually placed in a distinct order — see dinornis , moa

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History and Etymology for Dinornithidae

borrowed from New Latin, from Dinornith-, Dinornis dinornis + -idae -idae

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