| Engelsk substantiv: water flea | 
| 1. | water flea (om dyr) minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming; important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms | 
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 | Ord med samme betydning (synonymer) | cyclops | 
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 | Mindre spesifikke uttrykk | copepod, copepod crustacean | 
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 | Tilhører disse overordnede uttrykkene | genus Cyclops | 
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| 2. | water flea (om dyr) 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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 | Ord med samme betydning (synonymer) | daphnia | 
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 | Mindre spesifikke uttrykk | branchiopod, branchiopod crustacean, branchiopodan | 
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 | Tilhører disse overordnede uttrykkene | genus Daphnia | 
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