- a plural of iris.
- Anatomy. the contractile, circular diaphragm forming the colored portion of the eye and containing a circular opening, the pupil, in its center.
- Botany. any plant of the genus Iris, having showy flowers and sword-shaped leaves.Compare iris family.
- a flower of this plant.
- (initial capital letter) Classical Mythology. a messenger of the gods, regarded as the goddess of the rainbow.
- a rainbow.
- any appearance resembling a rainbow.
- Movies, Television. an iris-in or iris-out.
- Optics, Photography. iris diaphragm.
- Movies. to begin or end a take or scene with an iris-in or iris-out, achieved by manipulation of an iris diaphragm on the camera or by editing the film.
Origin of iris
Examples from the Web for irides
Both pupils and irides were black, and glistened like the eyes of a weasel.The Quadroon
The bill is one inch one line long from the gape, and, with the irides, is red.Zoological Illustrations, Volume I
The irides of the eyes of this bird were of a beautiful bright yellow colour.The Natural History of Selborne, Vol. 1
Their irides are yellow, with a small pupil, whereas in the male the eye is hazel and the pupil large.Unexplored Spain
The black stared, with the opalescent whites of his eyes forming rings around his irides.King o' the Beach
George Manville Fenn
- the goddess of the rainbow along which she travelled to earth as a messenger of the gods
- the coloured muscular diaphragm that surrounds and controls the size of the pupil
- Also called: fleur-de-lys any plant of the iridaceous genus Iris, having brightly coloured flowers composed of three petals and three drooping sepalsSee also flag 3, orris 1, stinking iris
- Also called: rainbow quartz a form of quartz that reflects light polychromatically from internal fractures
- a rare or poetic word for rainbow
- something resembling a rainbow; iridescence
- short for iris diaphragm
Word Origin and History for irides
late 14c., flowering plant (Iris germanica), also "prismatic rock crystal," from Latin iris (plural irides) "iris of the eye, iris plant, rainbow," from Greek iris (genitive iridos) "a rainbow; the lily; iris of the eye," originally "messenger of the gods," personified as the rainbow. The eye region was so called (early 15c. in English) for being the colored part; the Greek word was used of any brightly colored circle, "as that round the eyes of a peacock's tail" [Liddell and Scott].
- The round pigmented contractile membrane of the eye that is perforated in the center by the pupil, forms the front part of the vascular tunic, and is attached on the margin to the ciliary body.
- 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.