Noun genus notonecta has 1 sense
  1. Notonecta, genus Notonecta - type genus of the Notonectidae: backswimmers
    --1 is a kind of arthropod genus
    --1 is a member of Notonectidae, family Notonectidae
    --1 has members: backswimmer, Notonecta undulata
,
TOP