backswimmer definition

  • noun:
    • any one of numerous aquatic pests of the family Notonectidae that swimming on the backs by way of broadened, oarlike hind legs.
    • some of different aquatic insects, associated with family Notonectidae, that swimming on the backs.
    • any of many predaceous aquatic pests associated with the household Notonectidae (such as for instance Notonecta undulata) that swim on their backs that will cause painful bites; -- also called motorboat bug.
    • Same as boat-fly.
    • predaceous aquatic pest that swims on its as well as may inflict painful bites

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