Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various water fleas of the genus Daphnia, having long branched antennae, some species of which are commonly used as food for aquarium fish.

from The Century Dictionary.

  • noun A genus of minute fresh-water cladocerous entomostracous crustaceans, the type of the family Daphniidœ, and representative of the whole order Daphniacea or Cladocera.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.) A genus of the genus Daphnia.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A water flea of the genus Daphnia.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin Daphnia, genus name, from Greek Daphnē, Daphne.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the genus name.

Examples

  • In the lab, Diamond recently showed a visitor how he exposed tiny water fleas called daphnia to titanium dioxide nanoparticles.

    News & Features from Minnesota Public Radio

  • Try offering less dried foods, especially pellets, or offer some daphnia which is believed to act as a laxative.

    Practical Fishkeeping

  • Try offering less dried foods, especially pellets, or offer some daphnia which is believed to act as a laxative.

    Practical Fishkeeping

  • Daphnia are used as "biomoitors"--if the daphnia start acting beserk, something is wrong with the water.

    Archive 2009-03-01

  • I was involved with an after school science program where one group tested the effects on daphnia of the components of sports drinks.

    I heart Daphnia

  • There were all kinds of tiny animals in there, water beetles and daphnia and so on and so forth.

    Archive 2009-06-28

  • Daphnia are used as "biomoitors"--if the daphnia start acting beserk, something is wrong with the water.

    I heart Daphnia

  • There were all kinds of tiny animals in there, water beetles and daphnia and so on and so forth.

    True Amphibian Crime Part Two: The Transbay Newt Shuffle

  • I hardly spend time contemplating the daphnia I carelessly tossed into the compost today, and the daphnia left certainly do not spend any time pondering me.

    Late November

  • So I pull out yards and yards of elodea, and along with it snails and daphnia and copepods and stentorians and paramecia.

    Late November

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