iris

Definitions

  • Iris passes on her message
    Iris passes on her message
  • WordNet 3.6
    • n iris diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
    • n iris muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye
    • n iris plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The study of the iris of the eye is called iridology
    • Iris (Bot) A genus of plants having showy flowers and bulbous or tuberous roots, of which the flower-de-luce (fleur-de-lis), orris, and other species of flag are examples. See Illust. of Flower-de-luce.
    • Iris An appearance resembling the rainbow; a prismatic play of colors.
    • Iris same as iris diaphragm.
    • Iris (Her) See Fleur-de-lis, 2.
    • Iris (Anat) The contractile membrane perforated by the pupil, and forming the colored portion of the eye. See Eye.
    • Iris (Class. Myth) The goddess of the rainbow, and swift-footed messenger of the gods.
    • Iris (Zoöl) the inner circle of an oscillated color spot.
    • Iris The rainbow.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: The iris membrane controls the amount of light that enters your eye.
    • n iris The rainbow.
    • n iris [capitalized] In classical mythology, the goddess of the rainbow and messenger of the gods, attached especially to Hera. She was considered as a radiant maiden borne in swift flight on golden wings, and was often represented with the herald's attributes of Hermes—the talaria and caduceus. Hence sometimes used for any messenger.
    • n iris [capitalized] The seventh planetoid, discovered by Hind at London in 1847.
    • n iris An appearance resembling a rainbow; an appearance of the hues of a rainbow, as seen in sunlit spray, the spectrum of sunlight, etc.; any iridescence.
    • n iris A precious stone.
    • n iris In anatomy, a contraetile colored curtain suspended vertically in the aqueous humor of the eye, between the cornea and the lens, separating the anterior and posterior chambers, which intercommunicate through the pupil. The iris gives the color to the eye, by the presence or absence of pigment, and regulates, by contraction and dilatation of its aperture, the amount of light admitted to the eye. The movements of the iris, and consequently the size and shape of the pupil, are effected by two sets of muscular fibers, circular and radiating. The circular fibers which contract the pupil are under the control of the third cranial nerve, while the innervation of the radiating fibers is through the cervical sympathetic. The pupil contracts when the retina is stimulated by light, and on convergence or on accommodation. The pupil dilates on stimulation of the skin. When its contraction is uniform, the pupil always remains circular, as in man; in other cases, as that of the cat, the pupil is a narrow slit when contracted, though circular when dilated; in others, again, the pupil has a more constant oval, elliptical, oblong, or other shape. Muscular action of the iris is usually automatic, depending upon the stimulus of light; but many animals, as birds, have striped and probably voluntary iridian muscles. Some drugs affect the iris powerfully and specifically: thus, opium contracts and belladonna dilates the pupil. Great as is the range of color in the human iris, from light-bluish and grayish tints through all shades of brown to blackish, it is slight in comparison with that of birds, where not only the browns, but bright reds, greens, and blues are found, and sometimes pure white. The iris of albinos is generally pink, being devoid of pigment, and consequently displaying the color of the delicate blood-vessels. The pupil normally appears black, the dark coat of the back of the eyeball being seen through this aperture. See cuts under eye.
    • n iris In entomology, the first or inner ring of an ocellated spot, adjoining the pupil, being a light-colored circle with a dark center and outer border.
    • n iris [capitalized] [NL. (Linnæus).] A genus of monocotyledonous plants of the natural order Irideæ, tribe Moræeæ, having the perianth 6-parted, the 3 outer divisions spreading or reflexed, and the 3 inner smaller and erect. The pod is 3- to 6-angled. They are perennial herbs with sword-shaped or grassy leaves and generally large and showy purple, yellow, or white flowers. About 100 species are known, natives of Europe, northern Africa, and temperate Asia and America. They are widely known in cultivation under the name of fleur-de-lis (flower-deluce), I. Germanica being the common cultivated form. The wild species are very generally known in America as blue flag, I. versicolor being the larger blue flag and I. Virginica the slender blue flag. I. verna of the eastern United States is the dwarf iris, and I. cristata of nearly the same range is the crested dwarf iris. I. Pseudacorus of Europe and Russian Asia is the yellow iris or yellow flag. The roots possess astringent qualities, and the seeds when roasted are used in Great Britain as a substitute for coffee. I. fætidissima of western Europe is the fetid iris, gladden, or roast-beef plant. The orris-root of commerce is supplied by I. florentina. This root possesses cathartic and emetic properties, and from its agreeable odor is also used in making tooth-and hair-powders. Six extinct species of Iris have been described from the Tertiary deposits of Europe (one in Spitzbergen), and several allied forms from lower formations, under thenames Iridium and Irites.
    • n iris A plant of the genus Iris.
    • n iris The root of a species of iris cultivated in India and sold in the bazaars of Calcutta to be used, like the Florentine orris-root, in perfumery and medicine.
    • n iris The iridescence in fractured pieces of rock-crystal. When the fractures are cut out with the upper crystal itself and polished, they show a beautiful play of color. The name is also applied to rock-crystal and the cheaper stones to which color is applied by means of a coating on the back to produce the effect of a play of colors. A similar effect is produced by cementing various colored glasses together and then coating them.
    • ***
Chambers's Twentieth Century Dictionary
    • n Iris ī′ris the rainbow: an appearance resembling the rainbow: the contractile curtain perforated by the pupil, and forming the coloured part of the eye (also I′rid): the fleur-de-lis, or flagflower
    • ***

Etymology

Webster's Revised Unabridged Dictionary
L. iris, iridis, the goddess, Gr. , , the rainbow, iris of the eye, the plant Iris. Cf. Orris
Chambers's Twentieth Century Dictionary
L. iris, iridis—Gr. iris, iridos, the rainbow.

Usage

In literature:

Her eyes filled with tears, and the irradiated iris shone through them with a liquid lustre.
"'way Down In Lonesome Cove" by Charles Egbert Craddock (AKA Mary Noailles Murfree)
Never had flower been more welcome to Maria than this iris, offered to her with a smile.
"Deerbrook" by Harriet Martineau
A crown resembling Iris surrounded the disc of the Sun and darkened its rays.
"The Story of Eclipses" by George Chambers
P'ison flag grew here, too, the sturdy, delicate iris that made the swamp so gay.
"Country Neighbors" by Alice Brown
The city walls above us wave with snapdragons and iris among fig-trees sprouting from the riven stones.
"New Italian sketches" by John Addington Symonds
The lowland was a sea of blue iris.
"Life at Puget Sound: With Sketches of Travel in Washington Territory, British Columbia, Oregon and California" by Caroline C. Leighton
In the other's eye white predominated below the iris.
"The Wreck of the Titan" by Morgan Robertson
With the Story of Iris.
"Tales of a Wayside Inn" by Henry Wadsworth Longfellow
The misunderstanding that had parted them had come about because of the loss of a miniature of the girl, Iris Vandmere.
"Princess Polly At Play" by Amy Brooks
The eyes she had not seen for such an agony of years, the strange, deep, iris-colored eyes, there they were now searching her.
"The Branding Iron" by Katharine Newlin Burt
The iris or hazy circle which appears round the moon before rain.
"The Sailor's Word-Book" by William Henry Smyth
The collector's field notes recorded the iris as blood-red.
"Birds from Coahuila, Mexico" by Emil K. Urban
Our Aunt Esta is very much interested in Iris Roots.
"Fairy Prince and Other Stories" by Eleanor Hallowell Abbott
There is an iris on the cloud of humanity.
"True to His Home" by Hezekiah Butterworth
Iris-necked, and pink-footed, the pigeons ran about picking up seeds.
"The Picture of Dorian Gray" by Oscar Wilde
The iris is peculiar; I never saw its like in any other bird.
"Travels in Peru, on the Coast, in the Sierra, Across the Cordilleras and the Andes, into the Primeval Forests" by J. J. von Tschudi
Also the Iris from England, and the Dido from Hong Kong, which latter vessel sailed for Sarawak.
"Borneo and the Indian Archipelago" by Frank S. Marryat
Iris meantime, in various robe array'd, Collects the waters and supplies the clouds.
"The Metamorphoses of Publius Ovidus Naso in English blank verse Vols. I & II" by Ovid
The dark rims around the iris seemed to have expanded.
"Amabel Channice" by Anne Douglas Sedgwick
Eyes are of many colours, and the colour depends upon the pigment in the iris.
"Mendelism" by Reginald Crundall Punnett
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In poetry:

The Iris her pennon unfurls,
My unspoken message to carry,
A flower-poem writ by a fairy,
And Buttercups rounder than pearls.
"With A Bunch Of Spring Flowers" by Kate Seymour Maclean
So round your sleep I soft let fall
Frail emblems of regret;
The lowly wind—flower, tulip tall,
The iris mantling wayside wall,
And weeping violet.
"At Her Grave" by Alfred Austin
"Mine, too, are the blossoms of sweet young hopes,
And the Iris light they shed;
And mine is the flush of the coming years,
For I think not of the dead.
"Life and Death" by Alexander Anderson
Ere the robin paints his breast,
Ere the daffodil is drest,
Ere the iris' lovely head
Waves above her perfumed bed
Comes the crocus--and the Spring
Follows after, wing on wing!
"The Crocus Bed" by Isabel Ecclestone Mackay
VII. Transient indeed, as young spring's iris sky,
And ever fleetest in thy dearest bliss;
Chas'd by a doubt, a frown, a tear, a sigh;
Lured by a glance, a thought, a smile, a kiss.
"Joy" by Sydney Owenson
The Autumn comes, and chilly frost of morn,
Has, with his crystal mantle, all things spread,
And tinged with iris hues the leaves that on
The moss-terraced mountain heights the oreads tread.
"Autumn" by George Hannibal Temple

In news:

This yellow iris was one of several that are in bloom currently.
Zanzibari Pumpkins & Spice & Everything Nice By Iris Brooks.
Joseph and Iris Turoczy of Hubbard Lake celebrated their 60th wedding anniversary on Oct 24, 2012.
Joseph and Iris were married in Delray, Detroit at the Hungarian Reform Church.
Iris' home monitoring system affordable , not dependent on Wi-Fi tech talk nick DeLorenzo.
Olympic Medalist Ryosuke Irie Migrating South to Australia .
Cirque's "Iris" didn't have the legs for L.A.
Carol Munson stands next to her grandchildren Mallorie and Hunter Stelly and the iris they won at Saturday's Share-A-Plant event.
The decision by Cirque du Soleil to install its permanent show Iris at the little-used Kodak Theatre could seal the deal on Hollywood Boulevard's second act.
According to IRI data, 35% of boomers are planning to work into their late 60s and beyond—with 12% of boomers planning to work into their late 60s and another 23% planning to work to age 70 or older.
Annie Iris Browning Bullard passed gently away on the morning of Oct 29, 2012 at the age of 84 years.
IZotope Releases All-New Bundle , Iris+5.
Features Voice, the newest Sound Library for Iris.
Local advocacy group Wild Iris is heading local efforts with a "Can the Violence" fundraiser asking locals to donate proceeds from recycled aluminum cans to the organization.
Credit Iris Salgado / UNC Press.
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In science:

Ratha, “Secure and robust iris recognition using sparse representations and random projections,” IEEE Trans.
Discriminative Local Sparse Representations for Robust Face Recognition
Then ra = (P αiri )a = x(P αiui bi ) and so Xn+1 has the claimed property.
Free subalgebras of division algebras over uncountable fields
Eric Ristad is partially supported by Young Investigator Award IRI-9258517 from the National Science Foundation.
Learning string edit distance
Let us assume that the dominant nonlinear effect is a local interaction of the small-scale fluct uations of hi with the similarly small-scale component of hΦiRi .
Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas
In the expression for hχiRi [Eq. (69)], vkAk/c ≪ ϕ, so Eq. (249) holds.
Astrophysical gyrokinetics: kinetic and fluid turbulent cascades in magnetized weakly collisional plasmas
Observations of α CMa and the asteroid Iris were used as telluric standards.
High-resolution Spectroscopy of [Ne II] Emission from TW Hya
We estimate the telluric correction for each observation by interpolating the standard spectra of Iris and α CMa at intermediate airmasses.
High-resolution Spectroscopy of [Ne II] Emission from TW Hya
We took the opportunity of the new piezo-controlled ’IRIS Fast Guiding’ (IFG) positioning of the AMBER entrance beams and the availability of the AT beacons to test whether the injection of the beam creates or augments the “phase beating” effect (see sect. 4.2).
AMBER Task Force February 2008 run report
In order to illustrate this function, let us consider the iris data available in R.
asympTest: an R package for performing parametric statistical tests and confidence intervals based on the central limit theorem
Wright, "The infrared imaging spectrograph (IRIS) for TMT: sensitivities and simulations", Proc.
Using Site Testing Data for Adaptive Optics Simulations
Iri, Approximation of a tessel lation of the plane by a Voronoi diagram, J.
Voronoi Diagram: The Generator Recognition Problem
An iris may be used to filter high-frequencies and limit the angular span.
Coherent Diffusion of Polaritons in Atomic Media
If each Ri is an n-adical ly closed ring, then colimi∈IRi is an n-adical ly closed ring.
Polygons in Quadratically Closed Rings and Properties of n-adically Closed Rings
For the proof of this lemma, we will need to look at the actual construction of colimi∈IRi .
Polygons in Quadratically Closed Rings and Properties of n-adically Closed Rings
Note that the underlying set of colimi∈IRi is (Fi∈I Ri )/∼, where for i, j ∈ I, ri ∈ Ri , rj ∈ Rj , (ri , i) ∼ (rj , j) if and only if there exists k ∈ I such that i, j ≤ k and ϕik (ri ) = ϕjk (rj ).
Polygons in Quadratically Closed Rings and Properties of n-adically Closed Rings
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