Areola vs. Iris

Areolanoun

(anatomy) The colored circle around a nipple, more exactly known as areola mammae.

Areolanoun

(anatomy) Any small circular area that is different from its immediate environment, such as the colored ring around the pupil of the eye (iris) or an inflamed region surrounding a pimple.

Areolanoun

(anatomy) Any of the small spaces throughout areolar connective tissue.

Areolanoun

An interstice or small space, as between the cracks of the surface in certain crustaceous lichens; or as between the fibers composing organs or vessels that interlace; or as between the nervures of an insect's wing.

Areolanoun

The colored ring around the nipple, or around a vesicle or pustule.

Areolanoun

small space in a tissue or part such as the area between veins on a leaf or an insect's wing

Areolanoun

small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite

Areolanoun

a small circular area, in particular the ring of pigmented skin surrounding a nipple.

Areolanoun

any of the small spaces between lines or cracks on a leaf or an insect's wing.

Areolanoun

a reddened patch around a spot or papule.

Areola

The human areola (areola mammae, or ) is the pigmented area on the breast around the nipple. Areola, more generally, is a small circular area on the body with a different histology from the surrounding tissue, or other small circular areas such as an inflamed region of skin.

Irisnoun

(botany) A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant)).

Irisnoun

(anatomy) 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)).

Irisnoun

A diaphragm used to regulate the size of a hole, especially as a way of controlling the amount of light reaching a lens.

Irisnoun

(poetic) A rainbow, or other colourful refraction of light.

Irisnoun

(electronics) A constricted opening in the path inside a waveguide, used to form a resonator.

Irisnoun

(zoology) The inner circle of an oscillated color spot.

Irisverb

To open or close in the manner of an iris.

Irisnoun

The goddess of the rainbow, and swift-footed messenger of the gods.

Irisnoun

The rainbow.

Irisnoun

An appearance resembling the rainbow; a prismatic play of colors.

Irisnoun

The contractile membrane perforated by the pupil, and forming the colored portion of the eye. See Eye.

Irisnoun

A genus of plants having showy flowers and bulbous or tuberous roots, of which the flower-de-luce (fleur-de-lis), orris, and other species of flag are examples. See Illust. of Flower-de-luce.

Irisnoun

See Fleur-de-lis, 2.

Irisnoun

the inner circle of an oscillated color spot.

Irisnoun

same as iris diaphragm.

Irisnoun

plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals

Irisnoun

muscular diaphragm that controls the size of the pupil; it forms the colored portion of the eye

Irisnoun

diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening