Definitions for irisˈaɪ rɪs; ˈɪr ɪˌdiz, ˈaɪ rɪ-

This page provides all possible meanings and translations of the word iris

Random House Webster's College Dictionary

i•risˈaɪ rɪs; ˈɪr ɪˌdiz, ˈaɪ rɪ-(n.)(pl.)i•ris•es; esp. for 1,8 ir•i•des; i•ris

  1. (n.)the contractile, circular diaphragm forming the colored portion of the eye and containing an opening, the pupil, in its center.

    Category: Anatomy

  2. any plant of the genus Iris, having flowers with three upright petals and three drooping, petallike sepals.

    Category: Plants

  3. a flower of this plant.

    Category: Plants

  4. (cap.) an ancient Greek goddess of the rainbow and messenger of the gods.

    Category: Mythology

  5. a rainbow.

  6. Category: Photography, Optics

    Ref: iris diaphragm.

Origin of iris:

1350–1400; ME < L Īris, īris < Gk Îris, îris rainbow

Princeton's WordNet

  1. iris, flag, fleur-de-lis, sword lily(noun)

    plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals

  2. iris(noun)

    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

  3. iris, iris diaphragm(noun)

    diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening

Wiktionary

  1. iris(Noun)

    A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms.

  2. iris(Noun)

    The contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye.

  3. iris(Noun)

    A diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens.

  4. iris(Noun)

    A rainbow, or other colourful refraction of light.

  5. iris(Verb)

    (of an aperture, lens or door) To open or close in the manner of an iris.

  6. Iris(ProperNoun)

    A messenger of the gods, and goddess of rainbows.

  7. Iris(ProperNoun)

    ; a flower name used since the end of the 19th century.

  8. Iris(ProperNoun)

    , an asteroid

  9. Origin: Ἶρις iris "rainbow".

Webster Dictionary

  1. Iris(noun)

    the goddess of the rainbow, and swift-footed messenger of the gods

  2. Iris(noun)

    the rainbow

  3. Iris(noun)

    an appearance resembling the rainbow; a prismatic play of colors

  4. Iris(noun)

    the contractile membrane perforated by the pupil, and forming the colored portion of the eye. See Eye

  5. Iris(noun)

    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

  6. Iris(noun)

    see Fleur-de-lis, 2

Freebase

  1. Iris

    Iris is a genus of 260–300 species of flowering plants with showy flowers. It takes its name from the Greek word for a rainbow, referring to the wide variety of flower colors found among the many species. As well as being the scientific name, iris is also very widely used as a common name for all Iris species, though some plants called thus belong to other closely related genera. A common name for some species is 'flags', while the plants of the subgenus Scorpiris are widely known as 'junos', particularly in horticulture. It is a popular garden flower. The often-segregated, monotypic genera Belamcanda, Hermodactylus, and Pardanthopsis are currently included in Iris.

The Nuttall Encyclopedia

  1. Iris

    the daughter of Thaumus (i. e. wonder) and of the ocean nymph Electra (i. e. splendour); was the goddess of the rainbow, and as such the messenger of the gods, particularly of Zeus and Hera, the appearance of the rainbow being regarded as a sign that communications of good omen were passing between heaven and earth, as it was to Noah that they would continue to be kept up; she is represented as dressed in a long wide tunic, over which hangs a light upper garment, and with golden wings on her shoulders.

U.S. National Library of Medicine

  1. Iris

    The most anterior portion of the uveal layer, separating the anterior chamber from the posterior. It consists of two layers - the stroma and the pigmented epithelium. Color of the iris depends on the amount of melanin in the stroma on reflection from the pigmented epithelium.


Translations for iris

Kernerman English Multilingual Dictionary

iris(noun)

the coloured part of the eye.

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