• WordNet 3.6
    • n Io the closest of Jupiter's moons; has active volcanoes
    • n Io (Greek mythology) a maiden seduced by Zeus; when Hera was about to discover them together Zeus turned her into a white heifer
    • ***
Webster's Revised Unabridged Dictionary
    • n Io An exclamation of joy or triumph; -- often interjectional.
    • ***
Century Dictionary and Cyclopedia
    • io A Latin interjection, or exclamation of joy or triumph: sometimes used as a noun in English.
    • n io In mythology, a daughter of Inachus, metamorphosed into a heifer and caused to be tormented by a terrible gadfly by Hera, in jealous revenge for the favors of Zeus. See Argus, 1.
    • n io The innermost of the four satellites of Jupiter.
    • n io In entomology: A genus of vanessoid butterflies.
    • n io [lowercase] The peacock butterfly, Vanessa io: used both as the technical specific name and as an English word.
    • n io [lowercase] A showy and beautiful moth of North America, Hyperchiria io, or Saturnia io, of yellow coloration, with prominent pink and bluish eyes on the hinder wings. The larva is covered with bunches of stinging spines, and feeds on many plants and trees, as Indian corn, cotton, hops, clover, elm, and cherry. The eggs are laid in clusters on the under side of the leaf.
    • n io An abbreviation of Iowa.
    • ***
Chambers's Twentieth Century Dictionary
    • n Io ī′ō an exclamation of joy or triumph.
    • ***


Webster's Revised Unabridged Dictionary
L.; cf. Gr. "iw`
Chambers's Twentieth Century Dictionary


In literature:

Phoebus liked Daphne; Jupiter Io; and why not I then Fawnia?
"Notes and Queries, Number 67, February 8, 1851" by Various
Long ago when the little ones of the Io Moth were small, they were, like most caterpillars, very ugly little things.
"Woodland Tales" by Ernest Seton-Thompson
Disse Rustico, tu di vero; ma tu hai un' altra cosa, che non l'ho io, et haila in iscambio di questo.
"The Decameron of Giovanni Boccaccio" by Giovanni Boccaccio
Io 430,000 266,000 1 18 2.
"Astronomy for Amateurs" by Camille Flammarion
Io so ben quel che dico!
"Beatrice d'Este, Duchess of Milan, 1475-1497" by Julia Mary Cartwright
Now, his song was Io triumphe, as he walked along.
"The Bertrams" by Anthony Trollope
I shudder as I behold the condition of Io.
"Prometheus Bound and Seven Against Thebes" by Aeschylus
The original C(IO) are lost.
"Preliminary Specifications: Programmed Data Processor Model Three (PDP-3)" by Digital Equipment Corporation
The other codex according to Torinus, was found in Transsylvania by Io.
"Cooking and Dining in Imperial Rome" by Apicius
He trekked the South Mars Desert and he had weathered the jungles of Io.
"One Purple Hope!" by Henry Hasse

In poetry:

Io cerchero` una sponda
Giallastra e desolata,
Ove si franga l'onda
D'una glauca marina sconfinata
"Quando?" by Ferdinando Fontana
E alla Morte grido`: "Perche` degg'io
"Morire adesso che son nata or ora?
"La mia parte di vita io chieggo a Dio...
"Io vo' vivere ancora!"
"Circolo" by Ferdinando Fontana
Io vengo a replicar su questa bara
Le tue parole; io compio il tuo desio....
E sento, amico, che mi e` meno amara
L'ultima volta che ti dico: Addio!
"In Morte Di Emilio Praga" by Ferdinando Fontana
Emilio! Emilio!... Son le tue parole
Ch'io ripeto commosso... e (lo rammento)
Da te un giorno le udii che le viole
Dicean l'april con profumato accento.
"In Morte Di Emilio Praga" by Ferdinando Fontana
Oh!... I bei tempi!... Eppur s'io medito
Sulle stragi dei possenti;
S'io ricordo il Sant'Uffizio
Ed i roghi dei sapienti;
S'io rifletto alle baldanze
Di tiranniche ignoranze;
"Evo Medio" by Ferdinando Fontana
"Non ha gemme la terra
"Che paghino una sola ora d'amore!...
"Ed io fui ricco!... Ed or di mia dovizia
"Le briciole soltanto, le memorie,
"Conforteranno i miei venturi giorni!
"Meriggio" by Ferdinando Fontana

In news:

Baxano's iO- Tome ™ Device Receives FDA Clearance.
Triceratops Gets Lost' for iOS.
Security software company Kaspersky discovered a Trojan Horse in the iOS App Store that sends your contacts to a remote server and spams people you know.
Encryption technology for iOS is, basically, unbreakable .
Summly iOS App Delivers News in Screen-Sized Summaries.
Windows 8's new interface shows more influence from Windows Phone than OS X Mountain Lion does from iOS.
Potential savings of $95 million annually if only 10% of central lines are replaced with IO access.
Nokia's 'Here Maps' iOS App Is a Buggy Eyesore.
The latest version of the Viz Engine allows for IP-based streaming video IO.
The iOS 6 Wifi Bug and How to Fix It.
Users can paste their Figure tracks into other iOS Apps with AudioCopy WIST lets two people jam together by syncing apps running on different iOS devices.
IOS 5, breaking Rocky's phone, and what's new in the mobile world.
Woolly Mammoth in Trouble' for iOS.
VooMote Zapper iOS Remote Solution Now Available.
A couple of iOS Maps questions.

In science:

Then M(λ, io , D) is precompact in the C 1,α and weak L2,p topologies, for any α < 1 and p < ∞.
Cheeger-Gromov Theory and Applications to General Relativity
KP is the sectional curvature of any plane P in the tangent bundle T M , then one has a lower bound on the injectivity radius, injg (M ) ≥ io (K, vo , D).
Cheeger-Gromov Theory and Applications to General Relativity
Let K be the algebra of compact operators on a separable Hilbert space and let φi be a collection of mutually orthogonal inclusions from Mni to K for i ∈ IO ∪ IU ∪ IT ∪ {0}.
The Range of United K-Theory
A quadratic category (C, o, •) is a category C endowed with the tensors products o and •, whose neutral elements are respectively Io and I• , and whose associative constraints are respectively co and c• .
Quadratic categories, Koszul resolutions and operads
The neutral element Io is T (L), and I• is L.
Quadratic categories, Koszul resolutions and operads