[ ahy-ris ]
/ ˈaɪ rɪs /
noun, plural i·ris·es, ir·i·des [ir-i-deez, ahy-ri-] /ˈɪr ɪˌdiz, ˈaɪ rɪ-/.
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.
any appearance resembling a rainbow.
Movies, Television. an iris-in or iris-out.
Optics, Photography. iris diaphragm.
verb (used without object)
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.
Words nearby iris
Origin of iris
1350–1400; Middle English < Latin Īris, īris < Greek Îris, îris rainbow, goddess of the rainbow, halo, iris flower or root, iridescent crystal; in some senses < New Latin < Greek: diaphragm of eye
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for irised (1 of 2)
/ (ˈaɪrɪs) /
the goddess of the rainbow along which she travelled to earth as a messenger of the gods
British Dictionary definitions for irised (2 of 2)
/ (ˈaɪrɪs) /
noun plural irises or irides (ˈaɪrɪˌdiːz, ˈɪrɪ-)
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 for iris
C14: from Latin: rainbow, iris (flower), crystal, from Greek
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for irised
[ ī′rĭs ]
n. pl. i•ris•es
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.
Other words from irisi′ri•dal (ī′rĭ-dl, ĭr′ĭ-) null null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for irised
[ ī′rĭs ]
Plural irises irides (ī′rĭ-dēz′, ĭr′ĭ-)
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Culture definitions for irised
[ (eye-ris) ]
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.