daphnia
1. [ noun ] (zoology) minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae
Synonyms: water_flea
Related terms: branchiopod_crustacean genus_Daphnia
Similar spelling:   Daphne
  dauphin
  Daphine
  Davin