Medusa

n 1: (Greek mythology) a woman transformed into a Gorgon by

Athena; she was slain by Perseus [syn: {Medusa}]

2: any of numerous usually marine and free-swimming

coelenterates that constitute the sexually reproductive

forms of hydrozoans and scyphozoans [syn: {jellyfish}, {medusan}]

3: one of two forms that coelenterates take: is the

free-swimming sexual stage in the life cycle of a

coelenterate and has a gelatinous umbrella-shaped body and

tentacles