iris, flag, fleur-de-lis, sword lily -- (plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals)
iris -- (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)
iris, iris diaphragm -- (diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening)
(Sound)
