plural noun Xe·nar·chi \zəˈnärˌkī\

Definition of Xenarchi

in some classifications

  1. :  an order or fishes that comprises only the pirate perches and is usually included in the order Salmopercae

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Origin and Etymology of xenarchi

New Latin, from xen- + Greek archos rectum, anus; akin to Greek archein to begin — more at archi-

Seen and Heard

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to cast off or become cast off

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