notonecta

English Thesaurus

1. type genus of the Notonectidae: backswimmers (noun.animal)

hypernym	:	arthropod genus,
definition	:	a genus of arthropods (noun.animal)

member holonym	:	backswimmer, notonecta undulata,
definition	:	predaceous aquatic insect that swims on its back and may inflict painful bites (noun.animal)

member meronym	:	family notonectidae, notonectidae,
definition	:	aquatic carnivorous insects (noun.animal)