Daphnia daphnetin • daphnin · · · Info · Definitions · Synonyms · Characters · · Daphnia · · Text Latin · · Script 7 · · Length Definitions · · · (noun) minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae. Synonyms: daphnia, water flea. · · Noun Definition 1 Synonyms · · · water flea · · Synonym 1 Characters · · D latin capital letter d U+0044 a latin small letter a U+0061 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070