1. (Greek mythology) a Trojan boy who was so beautiful that Zeus carried him away to serve as cupbearer to the gods;
2. the largest of Jupiter's satellites;
WordNet (r) 3.0 (2006):
Ganymede
n 1: (Greek mythology) a Trojan boy who was so beautiful that
Zeus carried him away to serve as cupbearer to the gods
2: the largest of Jupiter's satellites