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iris

[ahy-ris] /ˈaɪ rɪs/
noun, plural irises, irides
[ir-i-deez, ahy-ri-] /ˈɪr ɪˌdiz, ˈaɪ rɪ-/ (Show IPA)
1.
Anatomy. the contractile, circular diaphragm forming the colored portion of the eye and containing a circular opening, the pupil, in its center.
2.
Botany. any plant of the genus Iris, having showy flowers and sword-shaped leaves.
Compare iris family.
3.
a flower of this plant.
4.
(initial capital letter) Classical Mythology. a messenger of the gods, regarded as the goddess of the rainbow.
5.
a rainbow.
6.
any appearance resembling a rainbow.
7.
Movies, Television. an iris-in or iris-out.
8.
Optics, Photography, iris diaphragm.
verb (used without object)
9.
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
1350-1400
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

Iris

[ahy-ris] /ˈaɪ rɪs/
noun
1.
a female given name.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for iris

iris

/ˈaɪrɪs/
noun (pl) irises, irides (ˈaɪrɪˌdiːz; ˈɪrɪ-)
1.
the coloured muscular diaphragm that surrounds and controls the size of the pupil
2.
Also called fleur-de-lys. any plant of the iridaceous genus Iris, having brightly coloured flowers composed of three petals and three drooping sepals See also flag3 , orris1 , stinking iris
3.
Also called rainbow quartz. a form of quartz that reflects light polychromatically from internal fractures
4.
a rare or poetic word for rainbow
5.
something resembling a rainbow; iridescence
6.
short for iris diaphragm
Word Origin
C14: from Latin: rainbow, iris (flower), crystal, from Greek

Iris

/ˈaɪrɪs/
noun
1.
the goddess of the rainbow along which she travelled to earth as a messenger of the gods
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
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Word Origin and History for iris
n.

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].

Online Etymology Dictionary, © 2010 Douglas Harper
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iris in Medicine

iris i·ris (ī'rĭs)
n. pl. i·ris·es or i·ri·des (ī'rĭ-dēz', ĭr'ĭ-)
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.


i'ri·dal (ī'rĭ-dl, ĭr'ĭ-) or i·rid'i·al (ī-rĭd'ē-əl, ĭ-rĭd'-) or i·rid'i·an adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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iris in Science
iris
  (ī'rĭs)   
Plural irises or 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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iris in Culture
iris [(eye-ris)]

The colored membrane of the eye, surrounding the pupil, which by contracting and expanding regulates the amount of light that enters the eye.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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iris in Technology

body
Institute for Research in Information and Scholarship of Brown University (Providence RI).
(1994-11-04)


An object-oriented DBMS.
(1994-11-04)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for iris

IRIS

Integrated Risk Information System
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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4
4
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