Iris meaning

īrĭs
The iris is defined as the colored part of the eye around the pupil, the name of a woman, or a three-petal flower with sword-shaped leaves.

An example of an iris is the part of the eye that opens and closes to control how much light enters the pupil.

An example of an iris is a blue flower with three petals, each with a sepal, on a stock growing with long pointed leaves.

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The definition of iris is being of the family of plants known as Iridaceace.

An example of iris used as an adjective is in the phrase "iris family," which means a flower from this family such as an iris, a lily or a gladiolus.

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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.
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Any of numerous widely cultivated plants of the genus Iris, having narrow sword-shaped leaves and showy, variously colored flowers.
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A rainbow or rainbowlike display of colors.
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An iris diaphragm.
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The goddess of the rainbow and messenger of the gods.
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A rainbow.
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A rainbowlike show or play of colors.
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The round, pigmented membrane surrounding the pupil of the eye, having muscles that adjust the size of the pupil to regulate the amount of light entering the eye.
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Any of a large genus (Iris) of perennial plants of the iris family, with sword-shaped leaves and conspicuous flowers composed of three petals and three drooping sepals of widely varying color.
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The flower of these plants.
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Designating a family (Iridaceae, order Liliales) of monocotyledonous plants, including crocuses and gladioluses.
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A feminine name.
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The goddess of the rainbow: in the Iliad, she is the messenger of the gods.
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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.
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The colored, muscular ring around the pupil of the eye in vertebrate animals, located between the cornea and lens. Contraction and expansion of the iris controls the size of the pupil, thereby regulating the amount of light reaching the retina.
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(botany) A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms .
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(anatomy) 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 .
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(photography, cinematography) A diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens.
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(poetic) A rainbow, or other colourful refraction of light.
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(electronics) A constricted opening in the path inside a waveguide, used to form a resonator.
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(of an aperture, lens, or door) To open or close in the manner of an iris.
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(Greek mythology) A messenger of the gods, and goddess of rainbows.
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A female given name; a flower name used since the end of the 19th century.
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(astronomy) 7 Iris, an asteroid.
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Alternative form of irid-.
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Origin of iris

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

    From American Heritage Dictionary of the English Language, 5th Edition

  • Latin Īris from Greek from īris rainbow wei- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English, from Latin, from Ancient Greek ἶρις (iris, “rainbow”), from Proto-Indo-European *wei-ro- (“a twist, thread, cord, wire”), from Proto-Indo-European *wei- (“to turn, twist, weave, plait”).

    From Wiktionary

  • Ancient Greek Ἶρις iris "rainbow".

    From Wiktionary