io

[ ee-oh ]
/ ˈi oʊ /
|

noun, plural i·os.

a small hawk, Buteo solitarius, having two plumage phases and occurring only on the island of Hawaii, where it is a rare species and the only living indigenous bird of prey.

Nearby words

  1. inwrap,
  2. inwreathe,
  3. inwrought,
  4. inönü,
  5. inönü, ismet,
  6. io moth,
  7. io.,
  8. ioannina,
  9. iobates,
  10. ioc

Origin of io

From the Hawaiian word ʿio

Also called Hawaiian hawk.

Io

1
[ ahy-oh, ee-oh ]
/ ˈaɪ oʊ, ˈi oʊ /

noun

Classical Mythology. a woman who, being loved by Zeus, was transformed into a white heifer and was, at the wish of Hera, first guarded by Argus and later pursued through the world by a gadfly until she reached Egypt, where she resumed her true shape: identified by the Egyptians with Isis.
Astronomy. a large volcanically active moon of the planet Jupiter.

Io

2
[ ahy-oh, ee-oh ]
/ ˈaɪ oʊ, ˈi oʊ /

noun, plural I·os.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ios


British Dictionary definitions for ios

io

the internet domain name for

British Indian Ocean Territory

Io

1
/ (ˈaɪəʊ) /

noun

Greek myth a maiden loved by Zeus and turned into a white heifer by either Zeus or Hera

Io

2
/ (ˈaɪəʊ) /

noun

the innermost of the four Galilean satellites of Jupiter, displaying intense volcanic activity. Diameter: 3640 km; orbital radius: 422 000 km

Io

3

the chemical symbol for

ionium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ios

Io

in Greek mythology, daughter of the river god Inachus, she was pursued by Zeus and consequently changed into a heifer. The Jovian moon was discovered in 1610 and named for her by Galileo.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for ios

Io

[ īō, ēō ]

One of the four brightest satellites of Jupiter and the fifth in distance from the planet. It was first sighted by Galileo. See Note at moon.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.