iris

1 of 3

noun (1)

ˈī-rəs

plural irises also irides ˈī-rə-ˌdēz How to pronounce iris (audio)

ˈir-ə-

: the opaque contractile diaphragm perforated by the pupil and forming the colored portion of the eye see eye illustration

: iris diaphragm

also : a similar device with a circular opening that can be varied in size

also plural iris : any of a large genus (Iris of the family Iridaceae, the iris family) of perennial herbaceous plants with linear usually basal leaves and large showy flowers

: rainbow

iris

2 of 3

verb

irised; irising; irises

transitive verb

: to make iridescent

Iris

3 of 3

noun (2)

ˈī-rəs

: the Greek goddess of the rainbow and a messenger of the gods

Example Sentences

Recent Examples on the Web

Noun

Ornamental grasses or Siberian iris that have dead centers should be divided with the dead centers discarded.

Tim Johnson, chicagotribune.com, 9 Apr. 2022 An iris of a single, uniform color. Shoulder: Same as haft.

oregonlive, 7 May 2021 The procedure involves a laser device creating a hole in the iris of the eye, allowing extra fluid to drain properly.

Leah Groth, Health.com, 16 Dec. 2021 Most people are familiar with the bearded iris of mid- to late-spring, and may know the lanky bulbous Dutch iris of early spring.

Adrian Higgins, Washington Post, 20 Sep. 2021 Unlike a password, biometric identifiers cannot be changed; your iris and your fingerprint are permanent.

Jacob Silverman, The New Republic, 26 Aug. 2021 It was also covered in a thin layer of gold and engraved with a central circle to represent the iris, according to the ancient studies group.

Miriam Fauzia, USA TODAY, 17 Aug. 2021 One of those kids is Joella Migliori, a 5-year-old born with three genetic abnormalities, including iris atrophy, when someone is born missing layers of their iris, resulting in changes in vision.

Alaa Elassar, CNN, 8 Aug. 2021 But now the British artist is stripping his portraits down, releasing a new collection of works that each feature only a single iris from the eyes of beloved celebrities, powerful political leaders and controversial figures.

CNN, 5 June 2021

Verb

Platon has included an image of her iris the moment her child unexpectedly reached out to grab her during the shoot.

CNN, 5 June 2021 See More

Word History

Etymology

Noun (1)

Middle English, "iris of the eye, the plant Iris germanica," borrowed from Latin īrid-, īris "rainbow, the plant Iris pallida or related species," borrowed from Greek īrid-, îris "rainbow, iridescent halo around the moon, a flame, etc., iris of the eye, the plant Iris pallida or related species," going back to *wīrid-, *wīris, of uncertain origin

Note: Traditionally, Greek îris "rainbow" (for which an original digamma [letter representing the sound w] is assured by an inscription from Corinth and the metrics of epic poetry) has been regarded as a derivative of Indo-European *u̯ei̯H- "plait, wrap," parallel to Germanic *wīr- (see wire entry 1). However, the variant éris recorded by the Greek lexicographer Hesychius, as well as the dubious character of *wīrid- as an Indo-European formation (< *u̯ih₁-r-i-?) has drawn this etymology into question. Perhaps a substratal word.

Noun (2)

Latin, from Greek

First Known Use

Noun (1)

15th century, in the meaning defined at sense 3

Verb

1816, in the meaning defined above

Noun (2)

15th century, in the meaning defined above

Medical Definition

iris

noun

ˈī-rəs

plural irises or irides ˈī-rə-ˌdēz How to pronounce iris (audio)

ˈir-ə-

: the opaque muscular contractile diaphragm that is suspended in the aqueous humor in front of the lens of the eye, is perforated by the pupil and is continuous peripherally with the ciliary body, has a deeply pigmented posterior surface which excludes the entrance of light except through the pupil and a colored anterior surface which determines the color of the eyes

: iris diaphragm

单词	iris
释义	iris 1 of 3 noun (1) ˈī-rəs plural irises also irides ˈī-rə-ˌdēz ˈir-ə- 1 a : the opaque contractile diaphragm perforated by the pupil and forming the colored portion of the eye see eye illustration b : iris diaphragm also : a similar device with a circular opening that can be varied in size 2 also plural iris : any of a large genus (Iris of the family Iridaceae, the iris family) of perennial herbaceous plants with linear usually basal leaves and large showy flowers 3 : rainbow Illustration of iris iris 2 iris 2 of 3 verb irised; irising; irises transitive verb : to make iridescent Iris 3 of 3 noun (2) ˈī-rəs : the Greek goddess of the rainbow and a messenger of the gods Example Sentences Recent Examples on the Web Noun Ornamental grasses or Siberian iris that have dead centers should be divided with the dead centers discarded. Tim Johnson, chicagotribune.com, 9 Apr. 2022 An iris of a single, uniform color. Shoulder: Same as haft. oregonlive, 7 May 2021 The procedure involves a laser device creating a hole in the iris of the eye, allowing extra fluid to drain properly. Leah Groth, Health.com, 16 Dec. 2021 Most people are familiar with the bearded iris of mid- to late-spring, and may know the lanky bulbous Dutch iris of early spring. Adrian Higgins, Washington Post, 20 Sep. 2021 Unlike a password, biometric identifiers cannot be changed; your iris and your fingerprint are permanent. Jacob Silverman, The New Republic, 26 Aug. 2021 It was also covered in a thin layer of gold and engraved with a central circle to represent the iris, according to the ancient studies group. Miriam Fauzia, USA TODAY, 17 Aug. 2021 One of those kids is Joella Migliori, a 5-year-old born with three genetic abnormalities, including iris atrophy, when someone is born missing layers of their iris, resulting in changes in vision. Alaa Elassar, CNN, 8 Aug. 2021 But now the British artist is stripping his portraits down, releasing a new collection of works that each feature only a single iris from the eyes of beloved celebrities, powerful political leaders and controversial figures. CNN, 5 June 2021 Verb Platon has included an image of her iris the moment her child unexpectedly reached out to grab her during the shoot. CNN, 5 June 2021 See More Word History Etymology Noun (1) Middle English, "iris of the eye, the plant Iris germanica," borrowed from Latin īrid-, īris "rainbow, the plant Iris pallida or related species," borrowed from Greek īrid-, îris "rainbow, iridescent halo around the moon, a flame, etc., iris of the eye, the plant Iris pallida or related species," going back to wīrid-, wīris, of uncertain origin Note: Traditionally, Greek îris "rainbow" (for which an original digamma [letter representing the sound w] is assured by an inscription from Corinth and the metrics of epic poetry) has been regarded as a derivative of Indo-European u̯ei̯H- "plait, wrap," parallel to Germanic wīr- (see wire entry 1). However, the variant éris recorded by the Greek lexicographer Hesychius, as well as the dubious character of wīrid- as an Indo-European formation (< u̯ih₁-r-i-?) has drawn this etymology into question. Perhaps a substratal word. Noun (2) Latin, from Greek First Known Use Noun (1) 15th century, in the meaning defined at sense 3 Verb 1816, in the meaning defined above Noun (2) 15th century, in the meaning defined above Phrases Containing iris iris diaphragm bearded iris Japanese iris iris diaphragm bearded iris Japanese iris Kids Definition iris noun ˈī-rəs 1 : the colored part around the pupil of an eye 2 : a plant with long pointed leaves and large usually brightly colored flowers Medical Definition iris noun ˈī-rəs plural irises or irides ˈī-rə-ˌdēz ˈir-ə- 1 : the opaque muscular contractile diaphragm that is suspended in the aqueous humor in front of the lens of the eye, is perforated by the pupil and is continuous peripherally with the ciliary body, has a deeply pigmented posterior surface which excludes the entrance of light except through the pupil and a colored anterior surface which determines the color of the eyes 2 : iris diaphragm
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iris

noun (1)

Illustration of iris

verb

noun (2)

Example Sentences

Word History

Phrases Containing iris

Kids Definition

noun

Medical Definition

noun