- n only the silky anteater
- n (Greek mythology) one of a race of giants having a single eye in the middle of their forehead
- n 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
- BLIND EYE The Border Patrol installed portable guard booths called cyclopes, but it doesn't have enough agents to man them.