iris

Noun

iris (plural irises or iris or irides)

1. (countable) (botany) A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms.
2. (poetic) A rainbow, or other colourful refraction of light.
3. (countable) (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.
4. (countable) (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.

4 letters in word "iris": I I R S.

Anagrams of iris:

• siri

Words found within iris:

is si sir sri

• Definitions:
• The colored part of the eye with a hole (pupil) in the center. It regulates the amount of light entering the eye – the dimmer the lighting, the ...
• EPA's Integrated Risk Information System, an electronic data base containing the Agency's latest descriptive and quantitative regulatory information on chemical constituents.
• A mechanical diaphragm which can be controlled manually or automatically to adjust the lens aperture.
• the analysis of the colored ring that surrounds the eye’s pupil
• the colored part of the eye, located behind the cornea and in front of the lens. The tiny muscles inside the iris that play a part in regulating the amount of light that enters the eye by either dilating (widening) or contracting (narrowing) the size of the pupil.
• the flat colored part of the eye. It has tiny muscles that enlarge and reduce the size of the pupil
• The colored part of the eye. It is a circular disk that dilates and constricts, thereby controlling the amount of light entering the eye through its central opening, the pupil.
• Goddess of the rainbow and messenger of the gods, employed especially by Zeus and Hera.
• colored portion of the eye.
• Adjustable lens opening that the allows light to pass through, also called lens diaphragm.
• A means of controlling the size of a lens aperture and therefore the amount of light passing through the lens.
• The colored portion of the eye is called the iris. As with humans, dogs' iris colors vary. In the center of the iris is the black opening called the pupil. This opening can be made larger or smaller by muscles called ciliary bodies, that attach to the colored iris, causing it to expand or contract.
• The colored portion of the eye, the iris regulates the opening of the pupil.
• The colored part of the eye located behind the cornea.
• the ring of muscle fibers behind the cornea that determine eye color. The iris opens and closes the hole at its center—the pupil—to control the amount of light entering the eye.
• The part of an animal's eye that is pigmented, surrounding the dark pupil. It is made up of muscle fibers that control the size of the pupil and thus the amount of light allowed to enter the eye. The iris of Purple Martins is dark brown.
• of an ocellate wing spot, is a circle which surrounds the pupil.
• The disc-shaped pigmented contractile membrane of the eye that is attached at its margin to the ciliary body and is perforated centrally by the pupil.
• The iris surrounds the pupil and is made up of tissue that controls the size of the pupil. The iris provides the colour of your eyes.
• Adjustable diaphragm controlling amount of light trasmitted by a lens.
• Associated with death as Iris was a Greek goddess of the rainbow, which she used to travel down to earth with messages from the gods and to transport women's souls to the underworld. The three upright petals and three drooping sepals are symbols for faith, valor, and wisdom.
• the round, coloured part of the eye
• The video camera's lens opening which regulates the amount of light entering a camera.
• The colored tissue within the eye.
• A technique used to show an image in only one small round area of the screen. An Iris-Out begins as a pinpoint and then moves outward to reveal the full scene, while an Iris-In moves inward from all sides to leave only a small image on the screen. ...
• plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals muscular diaphragm that controls the size of the pupil; it forms the colored portion of the eye diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
• Iris is Miranda Sex Garden's second release, and first and only EP.
• "Iris" is a song by American alternative rock band the Goo Goo Dolls. It was originally written for the soundtrack of 1998 film City of Angels, and was later included on the band's sixth album Dizzy Up the Girl. ...
• Iris is an opera in three acts by Pietro Mascagni to an original Italian libretto by Luigi Illica. Its first performance was at the Teatro Costanzi in Rome in 1899.
• Iris is a genus of between 200-300 species of flowering plants with showy flowers which takes its name from the Greek word for a rainbow, referring to the wide variety of flower colours found among the many species. ...
• Iris is an ambiguous color term, usually referring to shades ranging from blue-violet to violet. However, in certain applications, it has been applied to an even wider array of colors, including pale blue, mauve, pink, and even yellow.
• In anatomy, the iris (plural irises or irides) is the most visible part of the eye of vertebrates, including humans. The following describes the iris of vertebrates, not the independently evolved iris found in some cephalopods. ...
• The IRIS solid propellant rocket is the expected product of an Iranian program to develop indigenous launch capability. It will be an advanced model of the Ghadr-110 IRBM missile, in turn currently under development and descended from Russian and Chinese technology.
• In the sci-fi television show, Stargate SG-1, the iris is a large, metal protective device that opens and closes over Earth's Stargate. The iris was designed by Stargate Command (SGC) to prevent unwanted travelers from emerging through the Stargate's wormhole.
• Iris is a character in the Mega Man X series. An alternate universe version of her also appears in the last installment of the Battle Network series, Battle Network 6: Cybeast Gregar/Falzar, and plays a significant role in the storyline. ...
• Iris is a 2001 film that tells the story of British novelist Iris Murdoch and her relationship with John Bayley. ...
• An iris is a mechanism that is used as a compact solution to close and open holes. Iris mechanisms are commonly found in optical shutters (diapragms), and also in various kinds of valve. Irises are sometimes used in science fiction as doors.
• In Greek mythology, Iris is the personification of the rainbow and messenger of the gods. As the rainbow unites Earth and heaven, Iris links the gods to humanity. ...
• IRIS is the first album by Romanian hard rock group IRIS.
• Iris is a Texas-based synthpop band, originally named Forgiving Iris.
• IRIS, or 2-methoxy-5-ethoxy-4-(n)-methylamphetamine, is a lesser-known psychedelic drug and a substituted Amphetamine. It is also the 5-ethoxy analog of DOM. IRIS was first synthesized by Alexander Shulgin. ...
• IRIS is a Romanian hard rock band. It was established in 1977 by Ioan Dumitrescu (drums), Ion Olteanu (lead solo guitar and vocals) and Emil Lechin?eanu (bass guitar). ...
• Iris is/was a French/British instrumental rock band. The members of the band were Sylvain Gouvernaire (guitar, piano and keyboards), Ian Mosley (drums) and Pete Trewavas (bass). The band released just one album, Crossing The Desert.
• IRIS is the annual management festival of the Indian Institute of Management Indore (IIMI), which is the newest and the most dynamic among the IIM fraternity. An institute that is carving a niche for itself in corporate India, it is characterised by the spirit of initiative. ...

• iring ←
• irids ←
• iridotomy ←
• iris
• → irisate
• → irisated
• → irisates