IRIS
Definition of IRIS
- (noun)plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
- (noun)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
- (noun)diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening