1. Predaceous aquatic insect that swims on its back and may inflict painful bites
   - Notonecta undulata

Derived forms: backswimmers

Type of: bug, hemipteran, hemipteron, hemipterous insect

Part of: genus Notonecta, Notonecta

Encyclopedia: Backswimmer

• Hevea brasiliensis
• Hevesy
• hew
• hew out
• hewer
• hewn
• hex
• hex nut
• hexa-
• hexachlorophene
• hexachord
• hexacosanoic acid
• hexad
• hexadecanoic acid
• hexadecimal
• hexadecimal digit
• hexadecimal notation
• hexadecimal number system
• hexadecimal system
• Hexadrol
• hexagon
• hexagonal
• hexagram
• Hexagrammidae
• Hexagrammos