Xenopterygii

plural noun
Xe·​nop·​te·​ryg·​ii | \ zə̇ˌnäptəˈrijēˌī, (ˌ)zeˌn-\

Definition of Xenopterygii

: an order of bony fishes that is coextensive with the family Gobiesocidae

History and Etymology for Xenopterygii

New Latin, from xen- + -pterygii

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