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water flea
noun
- any of various small crustaceans that move about in the water like fleas, as those of the genus Daphnia.
water flea
noun
- any of numerous minute freshwater branchiopod crustaceans of the order Cladocera, which swim by means of hairy branched antennae See also daphnia
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Word History and Origins
Origin of water flea1
First recorded in 1575–85
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Example Sentences
I have already spoken of the fresh-water shrimp and the water-flea (Daphnia pulex).
From Project Gutenberg
In short, she was a branchiopod, to be vulgarly precise, a water-flea.
From Project Gutenberg
The water-flea, Daphnia (a crustacean), lays two kinds of eggs known as “summer” and “winter” eggs.
From Project Gutenberg
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