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1. Greek Mythology A maiden who was loved by Zeus and transformed by Hera into a heifer.
2. One of the four brightest satellites of Jupiter. It was first sighted by Galileo.
[Latin Īō, from Greek.]
the internet domain name for
(Computer Science) British Indian Ocean Territory
(Classical Myth & Legend) Greek myth a maiden loved by Zeus and turned into a white heifer by either Zeus or Hera
(Celestial Objects) the innermost of the four Galilean satellites of Jupiter, displaying intense volcanic activity. Diameter: 3640 km; orbital radius: 422 000 km
the chemical symbol for
(Elements & Compounds) ionium
I•o(ˈaɪ oʊ, ˈi oʊ)
1. (in Greek myth) a woman loved by Zeus and changed by him into a heifer, which Hera claimed and put under Argus' guardianship.
2. a large volcanically active moon of Jupiter.