Synonyms: iris, iris diaphragm
Definition: diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
Similar words: diaphragm, stop
Definition: a mechanical device in a camera that controls size of aperture of the lens
Usage: the new cameras adjust the diaphragm automatically
Synonyms: iris
Definition: 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
Similar words: membrane, tissue layer
Definition: a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants
Synonyms: flag, fleur-de-lis, iris, sword lily
Definition: plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
Similar words: iridaceous plant
Definition: any bulbous plant of the family Iridaceae