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src: wikipedia
- Definition
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- iris :
A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See ).
- iris :
The contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye (See ).
- iris :
A diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens.
- iris :
A rainbow, or other colourful refraction of light.