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  • Daphnia
    Daphnia
    noun
    a genus of tiny, freshwater crustaceans having a transparent body, used in biological research and as food for tropical fish.
  • daphnia
    daphnia
    noun
    any water flea of the genus Daphnia, having a rounded body enclosed in a transparent shell and bearing branched swimming antennae

Daphnia

American  
[daf-nee-uh] / ˈdæf ni ə /

noun

  1. a genus of tiny, freshwater crustaceans having a transparent body, used in biological research and as food for tropical fish.


daphnia British  
/ ˈdæfnɪə /

noun

  1. any water flea of the genus Daphnia, having a rounded body enclosed in a transparent shell and bearing branched swimming antennae

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Daphnia

1840–50; < New Latin, perhaps after Daphne; see -ia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Daphnia are tiny crustaceans, and zebrafish are a small freshwater species that go from a cell to a swimming fish in about five days.

From Science Daily May 10, 2024

Scientists expect the populations of those zooplankton, specifically Daphnia and Bosmina, to continue growing in 2023.

From Los Angeles Times Apr. 11, 2023

For the estuary ecosystem, the scientists studied Inland Silverside and mysid shrimp, while in the freshwater ecosystem the scientists studied embryonic zebrafish and the crustacean Daphnia magna.

From Salon Mar. 3, 2022

In 2011, for instance, a group led by Ellner reanalysed11 35 years of data from dormant eggs of Daphnia water fleas, exhumed from a sediment core in Lake Constance.

From Nature Jan. 30, 2018

If they win, the Daphnia recovers; if they lose, it dies.

From Pioneers of Evolution from Thales to Huxley With an Intermediate Chapter on the Causes of Arrest of the Movement by Clodd, Edward

Tiny snails and shrimp known as daphnia eat algae and provide additional food for the fish.

From Los Angeles Times Jul. 25, 2024

There’s a consensus among scientists that for many creatures, including zooplankton like daphnia, the migration helps them avoid being eaten.

From Scientific American Dec. 6, 2021

Daphne, named after daphnia, a type of water flea, credited with helping clear the waters of Lake Washington of blue-green algae after sewage stopped regularly flowing into the lake in the 1960s.

From Seattle Times Mar. 27, 2021

That environment has great influence on heredity the water flea daphnia proves.

From Time Magazine Archive

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