iris

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I·ris

 (ī′rĭs)
n. Greek Mythology
The goddess of the rainbow and messenger of the gods.

[Latin Īris, from Greek, from īris, rainbow; see wei- in Indo-European roots.]

i·ris

 (ī′rĭs)
n. pl. i·ris·es or i·ri·des (ī′rĭ-dēz′, ĭr′ĭ-)
1. The pigmented, round, contractile membrane of the eye, suspended between the cornea and lens and perforated by the pupil. It regulates the amount of light entering the eye.
2. Any of numerous widely cultivated plants of the genus Iris, having narrow sword-shaped leaves and showy, variously colored flowers.
3. A rainbow or rainbowlike display of colors.
4. An iris diaphragm.

[Middle English, iris (the plant), from Latin īris, īrid-, rainbow, iris (the plant), from Greek, rainbow, brightly-colored gemstone, iris of the eye; see wei- in Indo-European roots.]

iris

(ˈaɪrɪs)
n, pl irises or irides (ˈaɪrɪˌdiːz; ˈɪrɪ-)
1. (Anatomy) the coloured muscular diaphragm that surrounds and controls the size of the pupil
2. (Plants) Also called: fleur-de-lys any plant of the iridaceous genus Iris, having brightly coloured flowers composed of three petals and three drooping sepals. See also flag3, orris1, stinking iris
3. (Minerals) Also called: rainbow quartz a form of quartz that reflects light polychromatically from internal fractures
4. a rare or poetic word for rainbow
5. something resembling a rainbow; iridescence
6. (Photography) short for iris diaphragm
[C14: from Latin: rainbow, iris (flower), crystal, from Greek]

Iris

(ˈaɪrɪs)
n
(Classical Myth & Legend) the goddess of the rainbow along which she travelled to earth as a messenger of the gods

i•ris

(ˈaɪ rɪs)

n., pl. i•ris•es; esp. for 1,8 ir•i•des (ˈɪr ɪˌdiz, ˈaɪ rɪ-) for 2,3 i•ris; n.
1. the contractile, circular diaphragm forming the colored portion of the eye and containing an opening, the pupil, in its center.
2. any plant of the genus Iris, having flowers with three upright petals and three drooping, petallike sepals.
3. a flower of this plant.
4. (cap.) an ancient Greek goddess of the rainbow and messenger of the gods.
5. a rainbow.
v.i.
[1350–1400; Middle English < Latin Īris, īris < Greek Îris, îris rainbow]

i·ris

(ī′rĭs)
The colored part around the pupil of the eye in vertebrate animals, located between the cornea and lens. Contraction and expansion of the muscular iris controls the size of the pupil, thereby regulating the amount of light reaching the retina.

iris

The circular colored part of the eye surrounding the pupil. Muscle fibers that make the iris contract alter pupil size, and so the amount of light entering the eye.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.iris - plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepalsiris - plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
iridaceous plant - any bulbous plant of the family Iridaceae
genus Iris - large genus of perennials that develop from bulbs or rhizomes
bearded iris - any of numerous wild or cultivated irises with hairlike structures on the falls (the drooping sepals)
beardless iris - any of numerous wild or cultivated irises having no hairs on the drooping sepals (the falls)
bulbous iris - any of various irises having a rootstock formed like a bulb
Iris cristata, dwarf iris - low-growing summer-flowering iris of northeastern United States
gladdon, gladdon iris, Iris foetidissima, roast beef plant, stinking gladwyn, stinking iris - iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa
Iris persica, Persian iris - bulbous iris native to Asia Minor cultivated for its pale lilac-colored flowers
Iris pseudacorus, yellow flag, yellow iris, yellow water flag - common yellow-flowered iris of Europe and North Africa, naturalized in United States and often cultivated
dwarf iris, Iris verna, vernal iris - low-growing spring-flowering American iris with bright blue-lilac flowers
blue flag, Iris versicolor - a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
Iris virginica, southern blue flag - similar to blue flag; the eastern United States
English iris, Iris xiphioides - bulbous iris native to the Pyrenees; widely cultivated for its large delicate flowers in various colors except yellow
2.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
eye, oculus, optic - the organ of sight
pupil - the contractile aperture in the center of the iris of the eye; resembles a large black dot
tissue layer, membrane - a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
3.iris - diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central openingiris - diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
diaphragm, stop - a mechanical device in a camera that controls size of aperture of the lens; "the new cameras adjust the diaphragm automatically"
Translations
سَوْسَنقَزَحِيَّةُ العَيْـنُقُزْحِيَّة العَيْن
duhovkakosatec
irisregnbuehinde
Iiriskehäkalvokurjenmiekkasilmän värikalvo
איריס
šarenica
íriszszivárványhártya
lithimnasverîlilja
アヤメ
홍채
irisasrainelė
īrissvaravīksnene
dúhovkakosatec
šarenica
perunika
iris
ม่านตา
irissüsenzambakgözbebeği etrafındaki renkli halka
mống mắt

iris

[ˈaɪərɪs] N (irises (pl))
1. (Anat) → iris m inv
2. (Bot) → lirio m

iris

[ˈaɪrɪs]irises (pl) n
[eye] (ANATOMY)iris m
(= flower) (BOTANY)iris m

iris

n
(of eye)Regenbogenhaut f, → Iris f
(Bot) → Iris f, → Schwertlilie f

iris

[ˈaɪərɪs] n
a. (Anat) → iride f
b. (Bot) → iris f inv, giaggiolo

iris

(ˈaiəris) noun
1. the coloured part of the eye.
2. a kind of brightly-coloured flower with sword-shaped leaves.

iris

قَزَحِيَّةُ العَيْـنُ duhovka iris Iris ίριδα iris silmän värikalvo iris šarenica iris アヤメ 홍채 iris iris tęczówka íris радужная оболочка глаза iris ม่านตา iris mống mắt 虹膜

i·ris

n. iris, membrana contráctil del humor acuoso del ojo situada entre el cristalino y la córnea, que regula la entrada de la luz.

iris

n (pl irides o irises) iris m