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IRIS
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Irregular inflected form: irides
I. (noun)
Sense 1
Meaning:
Diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
Synonyms:
Classified under:
Nouns denoting man-made objects
Hypernyms ("iris" is a kind of...):
diaphragm; stop (a mechanical device in a camera that controls size of aperture of the lens)
Sense 2
Meaning:
Muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye
Classified under:
Hypernyms ("iris" is a kind of...):
membrane; tissue layer (a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants)
Meronyms (parts of "iris"):
pupil (the contractile aperture in the center of the iris of the eye; resembles a large black dot)
Holonyms ("iris" is a part of...):
eye; oculus; optic (the organ of sight)
Sense 3
Meaning:
Plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
Synonyms:
flag; fleur-de-lis; iris; sword lily
Classified under:
Hypernyms ("iris" is a kind of...):
iridaceous plant (any bulbous plant of the family Iridaceae)
Hyponyms (each of the following is a kind of "iris"):
bearded iris (any of numerous wild or cultivated irises with hairlike structures on the falls (the drooping sepals))
beardless iris (any of numerous wild or cultivated irises having no hairs on the drooping sepals (the falls))
bulbous iris (any of various irises having a rootstock formed like a bulb)
dwarf iris; Iris cristata (low-growing summer-flowering iris of northeastern United States)
gladdon; gladdon iris; Iris foetidissima; roast beef plant; stinking gladwyn; stinking iris (iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa)
Iris persica; Persian iris (bulbous iris native to Asia Minor cultivated for its pale lilac-colored flowers)
Iris pseudacorus; yellow flag; yellow iris; yellow water flag (common yellow-flowered iris of Europe and North Africa, naturalized in United States and often cultivated)
dwarf iris; Iris verna; vernal iris (low-growing spring-flowering American iris with bright blue-lilac flowers)
blue flag; Iris versicolor (a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally)
Iris virginica; southern blue flag (similar to blue flag; the eastern United States)
English iris; Iris xiphioides (bulbous iris native to the Pyrenees; widely cultivated for its large delicate flowers in various colors except yellow)
Holonyms ("iris" is a member of...):
genus Iris (large genus of perennials that develop from bulbs or rhizomes)
Context examples:
Tissue located behind the iris and composed of muscle and epithelium.
(Ciliary body, NCI Thesaurus)
A non-metastasizing neoplasm that arises from the iris.
(Benign Iris Neoplasm, NCI Thesaurus)
Inflammation of the anterior uvea comprising the iris, angle structures, and the ciliary body.
(Anterior Uveitis, NLM, Medical Subject Headings)
A rare genetic inherited abnormality characterized by the partial or complete absence of the iris of the eye.
(Aniridia, NCI Thesaurus)
A melanoma arising from the choroid, ciliary body, or the iris.
(Mixed Cell Uveal Melanoma, NCI Thesaurus)
A pathologic finding about one or more characteristics of melanoma of the iris, following the rules of the TNM AJCC v7 classification system as they pertain to staging of the primary tumor.
(Melanoma of the Iris Pathologic Primary Tumor TNM Finding v7, NCI Thesaurus)
A disorder in which a person is born without part or all of the iris (colored tissue at the front of the eyeball).
(Aniridia, NCI Dictionary)
These abnormalities include iris atrophy, decreased corneal endothelium, iris nodules, adhesion of the iris to the lens and glaucoma.
(Cogan-Reese Syndrome, NCI Thesaurus)
This abnormality results in iris distortion, corneal swelling, pupil distortion, and glaucoma.
(Iridocorneal Endothelial Syndrome, NCI Thesaurus)
It is characterized by hypopigmentation of the skin, hair, and eyes, resulting in very fair skin, white colored hair, and reduced pigmentation in the iris and retina.
(Oculocutaneous Albinism, NCI Thesaurus)
