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Notonectidae

plural noun
No·​to·​nec·​ti·​dae | \ -təˌdē\

Definition of Notonectidae

: a family of aquatic carnivorous insects (order Hemiptera) having the back strongly convex and the hind legs long and resembling oars and habitually swimming back downward

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History and Etymology for Notonectidae

New Latin, from Notonecta, type genus (from not- + -necta swimmer, from Greek nēktēs, from nēchein to swim) + -idae

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