noun Py·gi·di·idae \ˌpījəˈdīəˌdē\

Definition of Pygidiidae

in some classifications

  1. :  a family of usually small and often parasitic South American catfishes that lack an adipose fin and have the dorsal fin located far back toward the tail

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Origin and Etymology of pygidiidae

New Latin, from Pygidium, type genus (from Greek pygidion) + -idae

Seen and Heard

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a trip made at another's expense

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