i ‧ ris /ˈaɪərəs, ˈaɪərɪs $ ˈaɪrəs/ BrE AmE noun [countable]
[ Date: 1400-1500 ; Language: Latin ; Origin: Greek , 'rainbow, iris plant, iris of the eye' ]
1 . a tall plant with long thin leaves and large purple, yellow, or white flowers
2 . the round coloured part of your eye, that surrounds the black ↑ pupil