plural noun
Agon·​i·​dae | \ə-ˈgä-nə-ˌdē\

Definition of Agonidae 

: a family of small slender fishes (order Scleroparei) having the body covered with overlapping striated often spiny plates

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First Known Use of Agonidae

1879, in the meaning defined above

History and Etymology for Agonidae

New Latin, from Agonus, type genus + -idae

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Time Traveler for Agonidae

The first known use of Agonidae was in 1879

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to clear from alleged fault or guilt

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