Io Definition

īō, ēō
noun
A maiden loved by Zeus and changed into a heifer by jealous Hera or, in some tales, by Zeus to protect her.
Webster's New World
The third largest satellite of Jupiter: discovered in 1610 by Galileo and found in 1979 to be volcanically active.
Webster's New World

A type of moth, the io moth.

Wiktionary
symbol
Ionium.
Webster's New World
interjection
An exclamation of joy or triumph.
Wiktionary
abbreviation

The ccTLD for British Indian Ocean Territory as assigned by the IANA.

Wiktionary

Origin of Io

  • From Latin; compare Ancient Greek ἰώ (iō, “oh!”).

    From Wiktionary

  • Modern Latin, from Ancient Greek ἰώ (iṓ, “Io”).

    From Wiktionary

  • Latin Īō from Greek

    From American Heritage Dictionary of the English Language, 5th Edition