Also found in: Thesaurus.
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|Noun||1.||order Notostraca - small freshwater crustaceans with a shield-shaped carapace|
animal order - the order of animals
Branchiopoda, subclass Branchiopoda - primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas
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