| Definition/Meaning | Word/Phrase |
|---|---|
| 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 | cyclops , water flea |
| kind of copepod | fish louse |
| copepod water fleas | genus Cyclops |