- 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.
- 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.
Close up of a brown iris.Licensed from iStockPhoto
- a rainbow
- a rainbowlike show or play of colors
- 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
- 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
- the flower of these plants
Origin: L Middle English from Classical Latin from Glassical Greek iris (gen. iridos) from Indo-European an unverified form wir- (from source wire) from base an unverified form wei-, to turn, bend
- a feminine name
- Gr. Myth. the goddess of the rainbow: in the Iliad, she is the messenger of the gods
Origin: L from Glassical Greek Iris: see iris
Used by arrangement with John Wiley & Sons, Inc.
noun pl. i·ris·es or i·ri·des
- 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.
- Any of numerous plants of the genus Iris, having narrow sword-shaped leaves and showy, variously colored flowers.
- A rainbow or rainbowlike display of colors.
- An iris diaphragm.
Origin: 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.
noun Greek Mythology
Origin: Latin Īris, from Greek, from īris, rainbow; see wei- in Indo-European roots.
iris - Computer Definition
(1) The name of SGI's first graphics terminals and workstations. The name was later used for SGI's high-availability software for its servers (IRIS FailSafe).
(2) (Infrastructure for Resilient Internet Systems) See DHT.
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iris - Cultural Definition
iris - Medical Definition
noun pl. i·ris·es or i·ri·des
- iridal , i·ridˈi·al , i·ridˈi·an adjective
iris - Science Definition
Plural irises irises or irides
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