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

ଅର୍ଥ : 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.