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 forms the colored portion of the eye
diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
造句
用作名詞(n.)
The opening of the iris is called the pupil. 虹膜的開口處叫做瞳孔。
The iris is fixed to the ciliary body. 虹膜固定在睫狀體上。
The iris of the eye is photographed from up to one meter away. 眼睛的虹膜最遠可在一公尺外的距離接受攝影。
Could you teach me how to adjust the iris of the camera? 你能教我怎么調照相機的光圈嗎？
Iris is the French national flower. 鳶尾是法國國花。
常用短語
iris diaphragm
[攝]虹彩光圈...
iris-out
【電視】【電影】圈出...
iris-in
【電視】【電影】圈入...
組詞
His crest, that prouder than blue Iris bends.
出自：Troilus Cressida,
Shakespeare
If Liberty Lent not life its soul of light, Hope its iris of delight.