| 单词 | iris |
| 释义 | iris (once / 1158 pages) 1n 2n Your iris is the colored part of your eye that surrounds the black pupil in the center. If your irises are brown, you can say you have brown eyes. The job of the iris is to determine how large or small the pupil is, depending on the amount of light available. Your iris protects your eye's retina, by controlling how much light reaches it, and helps you to see. Another kind of iris is a bright flower with long, spiky leaves. Both irises take their names from the Greek iris, "rainbow." WORD FAMILYiris: irides, irises USAGE EXAMPLESIris's mother, Helena Tyce, said she was really pleased her daughter's note received a reply. BBC(Dec 16, 2016) It kicked off with a Thursday event at the store in honor of octogenarian muse Iris Apfel, featuring a performance by Andra Day. Wall Street Journal(Dec 15, 2016) In “Iris Landscape,” the petals are so drastically foregrounded that they assume the weight of geographical features in their forested surroundings. Seattle Times(Dec 08, 2016) 1 1n 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 Hyper membrane, tissue layer a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants 2n diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening 2Syn|Hyper iris diaphragm diaphragm, stop a mechanical device in a camera that controls size of aperture of the lens n plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals Syn|Hypo|Hyper flag, fleur-de-lis, sword lily bearded iris any of numerous wild or cultivated irises with hairlike structures on the falls (the drooping sepals) beardless irisany of numerous wild or cultivated irises having no hairs on the drooping sepals (the falls) bulbous irisany of various irises having a rootstock formed like a bulb Iris cristata, dwarf irislow-growing summer-flowering iris of northeastern United States Iris foetidissima, gladdon, gladdon iris, roast beef plant, stinking gladwyn, stinking irisiris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa Iris persica, Persian irisbulbous iris native to Asia Minor cultivated for its pale lilac-colored flowers Iris pseudacorus, yellow flag, yellow iris, yellow water flagcommon yellow-flowered iris of Europe and North Africa, naturalized in United States and often cultivated Iris verna, dwarf iris, vernal irislow-growing spring-flowering American iris with bright blue-lilac flowers Iris versicolor, blue flaga common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally Iris virginica, southern blue flagsimilar to blue flag; the eastern United States English iris, Iris xiphioidesbulbous iris native to the Pyrenees; widely cultivated for its large delicate flowers in various colors except yellow Dutch iris, Iris filifoliabulbous Spanish iris with red-violet flowers Florentine iris, Iris florentina, Iris germanica florentina, orrisGerman iris having large white flowers with lavender-tinged falls and a fragrant rhizome German iris, Iris germanicaa large iris with purple or white flowers, native to central and southern Europe Iris kaempferi, Japanese irisiris native to Japan having large showy flowers German iris, Iris kochiiiris of northern Italy having deep blue-purple flowers; similar to but smaller than Iris germanica Dalmatian iris, Iris pallidaEuropean iris having soft lilac-blue flowers Dutch iris, Iris tingitanabulbous Spanish iris having blue flowers Iris xiphium, Spanish iris, xiphium irisbulbous iris of western Mediterranean region having usually violet-purple flowers iridaceous plant any bulbous plant of the family Iridaceae |
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