daph·nia
| \ ˈdaf-nē-ə
\
\
Definition of daphnia
: any of a genus (Daphnia) of minute freshwater branchiopod crustaceans with biramous antennae used as locomotor organs — compare water flea
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“Daphnia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/daphnia. Accessed 27 Jun. 2022.
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Time Traveler for daphnia
The first known use of daphnia was in 1847
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