daphnid

noun

daph·​nid

ˈdafnə̇d

plural -s

: any of numerous small active water fleas

especially : any member of Daphnia or a related genus, many of which are used as feed for aquarium fishes

Word History

Etymology

New Latin Daphnidae, family of water fleas, from Daphnia, type genus + -idae

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