Agrionidae

plural noun
Ag·​ri·​on·​i·​dae | \ˌa-grē-ˈä-nə-ˌdē\

Definition of Agrionidae 

: a family of slender-bodied usually brilliantly colored damselflies

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First Known Use of Agrionidae

1838, in the meaning defined above

History and Etymology for Agrionidae

New Latin, from Agrion, type genus (from Greek, neuter of agrios wild) + -idae

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The first known use of Agrionidae was in 1838

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