i·ris
noun/ˈaɪrɪs/
/ˈaɪrɪs/
- the round coloured part that surrounds the pupil of your eye

enlarge image Topics Bodyc2虹膜 - a tall plant with long pointed leaves and large purple or yellow flowers

enlarge image Topics Plants and treesc2鸢尾属植物
Word Originmodern Latin, via Latin from Greek iris ‘rainbow, iris’.