Dark Iris

Iris (anatomy)

The iris is a thin, ring-shaped structure in the eye in most mammals and birds that is responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris.

Iris (plant)

Iris is a flowering plant genus of 320 accepted species with showy flowers. As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera. A common name for some species is flags, while the plants of the subgenus Scorpiris are widely known as junos, particularly in horticulture. It is a popular garden flower.

Darkness

Darkness is the condition resulting from a lack of illumination, or an absence of visible light.

Iris (color)

Iris is an ambiguous color term, usually referring to shades ranging from blue-violet to violet.

dark

Adjective

1. Having an absolute or (more often) relative lack of light.
2. Extinguished.

Noun

1. A complete or (more often) partial absence of light.
2. Ignorance.

iris

Noun

1. A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia ).
2. 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 (anatomy) on Wikipedia.Wikipedia ).

Verb

1. To open or close in the manner of an iris.
2. To cause (something) to shine with the colours of the rainbow; to make iridescent.