1. (

• Cyclops

) (Greek mythology) one of a group of giants having a single eye in the middle of their forehead ;

2. (

• cyclops ,
• water_flea ,

) 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 ;