daphnia
Noun: A daphnia is a very small, almost microscopic, freshwater crustacean. It has a rounded body protected by a clear, see-through shell. It swims in a jerky, hopping motion using its feathery, branched antennae, which makes it look like it is moving like a flea.
The word "daphnia" is used to refer to this specific type of tiny aquatic animal. It is a scientific/common name. * Scientists study daphnia to monitor water quality. * Daphnia are an important food source for small fish in aquariums and ponds. * Under the microscope, you can see the internal organs of the daphnia through its transparent shell.
- Genus Name: "Daphnia" is also the name of the genus to which these organisms belong. In formal biological contexts, it is often italicized.
- Daphnia magna is a common species used in laboratory toxicity tests.
- Collective Reference: The word can be used in both singular and plural forms, though "daphnia" is often used as a plural (similar to "fish" or "deer").
- A single daphnia was placed in the sample. / The tank is full of daphnia.
- Water Flea: This is the most common English nickname for daphnia, directly describing its jumping swimming style.
- Cladoceran: This is the scientific name for the order of crustaceans to which daphnia belong.
- Water flea
The word "daphnia" has only one primary meaning, referring specifically to this group of small crustaceans. It is not used idiomatically.
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minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae
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