noun
predaceous aquatic insect that swims on its back and may inflict painful bites
• Syn: ↑Notonecta undulata
• Hypernyms: ↑hemipterous insect, ↑bug, ↑hemipteran, ↑hemipteron
• Member Holonyms: ↑Notonecta, ↑genus Notonecta
Useful english dictionary. 2012.