- Class. Myth. a nymph loved by Zeus and changed into a bear by Hera
- the second largest satellite of Jupiter: discovered in 1610 by Galileo
Origin of CallistoClassical Latin ; from Classical Greek Kallist?
- Greek Mythology A nymph, beloved of Zeus and hated by Hera. Hera changed her into a bear, and Zeus then placed her in the sky as the constellation Ursa Major.
- One of the four brightest satellites of Jupiter. Originally sighted by Galileo, it is the third largest satellite in the solar system.
Origin of CallistoLatin, from Greek Kallist&omacron;, perhaps from kallistos, superlative of kalos, beautiful.