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Short "hint"

n. - Minute freshwater crustacean having a round body enclosed in a transparent shell.

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Usage examples (15)
  • In the lab, Diamond recently showed a visitor how he exposed tiny water fleas called daphnia to titanium dioxide nanoparticles.
  • There were all kinds of tiny animals in there, water beetles and daphnia and so on and so forth.
  • So now one has the red silverfish-like shrimp, daphnia and small clams, and another has the anostracans.
  • daphnia are used as "biomoitors"--if the daphnia start acting beserk, something is wrong with the water.
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