galilean satellite

English Thesaurus

1. one of the four satellites of Jupiter that were discovered by Galileo (noun.object)

hypernym	:	satellite,
definition	:	any celestial body orbiting around a planet or star (noun.object)

instance hyponym	:	callisto,
definition	:	the second largest of Jupiter's satellites (noun.object)

instance hyponym	:	europa,
definition	:	the 4th largest of Jupiter's satellites; covered with a smooth shell of frozen water (noun.object)

instance hyponym	:	ganymede,
definition	:	the largest of Jupiter's satellites (noun.object)

instance hyponym	:	io,
definition	:	the closest of Jupiter's moons; has active volcanoes (noun.object)