'Daphnia' definitions:
Definition of 'daphnia'
From: WordNet
noun
Minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae [syn: daphnia, water flea]
Definition of 'Daphnia'
From: GCIDE
- Daphnia \Daph"ni*a\, n. [NL.] (Zool.) A genus of the genus Daphnia. [1913 Webster]