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noundiaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
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nounplants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
Similar:
type of: -
nounmuscular 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 eyetype of:
Parts of iris
- "pupil"