Medical Definition iris noun ˈī-rəs pluralirisesoriridesˈī-rə-ˌdēz ˈir-ə- 1 :the opaque muscular contractile diaphragm that is suspended in the aqueous humor in front of the lens of the eye, is perforated by the pupil and is continuous peripherally with the ciliary bod...
Define iris. iris synonyms, iris pronunciation, iris translation, English dictionary definition of iris. n. Greek Mythology The goddess of the rainbow and messenger of the gods. n. pl. i·ris·es or i·ri·des 1. The pigmented, round, contractile membran
Define iris copy. iris copy synonyms, iris copy pronunciation, iris copy translation, English dictionary definition of iris copy. n. The study of the iris of the eye, especially as associated with disease. ir′i·dol′o·gist n. American Heritage® Dic
iris: The pigmented, round, contractile membrane of the eye, suspended between the cornea and lens and perforated by the pupil. It regulates the amount of light entering the eye.
3 definitions of the word iris. Noun Plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals Muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it fo...
The meaning of IRIS is the opaque contractile diaphragm perforated by the pupil and forming the colored portion of the eye.
THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher. Iris (dreams) An iris is a spring flower that symbolizes several very positive and uplifting conditions. In Japan, it is believed that the iris has the power to purify...
First recorded in 1350–1400;Middle English,fromLatinĪris, īris,fromGreekÎris, îris“rainbow, goddess of the rainbow, halo, iris flower or root, iridescent crystal”; in some senses, fromNew Latin,fromGreek:“diaphragm of eye”
iris meaning, definition, what is iris: a tall plant with long thin leaves and l...: Learn more.
WebMD's Eyes Anatomy Pages provide a detailed picture and definition of the human eyes. Learn about their function and problems that can affect the eyes.