Definitions from Wiktionary ( )

▸ noun:  (botany) A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia).
▸ noun:  (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 (See Iris (anatomy) on Wikipedia.Wikipedia).
▸ noun:  (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.
▸ noun:  (poetic) A rainbow, or other colourful refraction of light.
▸ noun:  (electronics) A constricted opening in the path inside a waveguide, used to form a resonator.
▸ noun:  (zoology) The inner circle of an oscillated color spot.
▸ verb:  (of an aperture, lens, or door) To open or close in the manner of an iris.
▸ verb:  (literary) To cause (something) to shine with the colours of the rainbow; to make iridescent.
▸ noun:  (Greek mythology) A messenger of the gods, and goddess of rainbows.
▸ noun:  A female given name from Ancient Greek; a flower name used since the end of the 19th century.
▸ noun:  (astronomy) 7 Iris, a main belt asteroid.

---

▸ Word origin

▸ Words similar to iris
▸ Usage examples for iris

▸ Idioms related to iris
▸ Wikipedia articles (New!)
▸ Popular adjectives describing iris
▸ Words that often appear near iris
▸ Rhymes of iris

▸ Invented words related to iris