water flea


noun
  1. any of various small crustaceans that move about in the water like fleas, as those of the genus Daphnia.

Origin of water flea

1
First recorded in 1575–85

Words Nearby water flea

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How to use water flea in a sentence

British Dictionary definitions for water flea

water flea

noun
  1. 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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