Word Finder - iris

definition

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

definition

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)).

definition

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

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A rainbow, or other colourful refraction of light.

definition

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

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The inner circle of an oscillated color spot.

definition

(of an aperture, lens or door) To open or close in the manner of an iris.

Her eyes were almond shaped, the brown of the iris so dark that it was almost black.

The rainbow, which men call Iris, is a cloud that is purple and red and yellow.

Iris army was in the main aligned for attack.

The iris is in most young birds at first brown or dull-coloured, but with maturity attains often very bright tints which add considerably to the charm of the bird; sexual dimorphism is in this respect of common occurrence.

But afterlong negotiations Congress the treaty of alliance was signed in January 1855, and iris, while Austria remained neutral, a well-equipped Piedmontese force of 15,000 men, under General La Marmora, sailed for the Crimea.

The pupils contracted in the sunlight, leaving large pools of blue iris.

Scarcely has the cherry season passed when that of the wistaria (fuji) comes, followed by the azalea(tsutsuji) and the iris (shibu), the last being almost contemporaneous with the peony (botan), which is regarded by many Japan se as the king of flowers and is cultivated assiduously.

It is uncertain whether the conventional fleur-de-lis was originally meant to represent the lily or white iris - the flower-de-luce of Shakespeare - or an arrow-head, a spear-head, an amulet fastened on date-palms to ward off the evil eye, &c. In Roman and early Gothic architecture the fleur-de-lis is a frequent sculptured ornament.

The iris controls the amount of light that actually reaches the retina.

The iris contains a sphincter and a dilator muscle; the former, supplied by branches from the oculomotorius nerve, is under control of the will, whilst the dilator fibres belong to the sympathetic system.

It stood on the river Iris (Tozanli Su or Yeshil Irmak), and from its central position was a favourite emporium of Armenian and other merchants.

The chief towns in the interior were Amasia, on the Iris, the birthplace of Strabo, the capital of Mithradates the Great, and the burial-place of the earlier kings, whose tombs still exist; Comana, higher up the river, a famous centre of the worship of the goddess Ma (or Cybele); Zela, another great religious centre, refounded by Pompey, now Zilch; Eupatoria, refounded by Pompey as Magnopolis at the junction of the Lycus and Iris; Cabira, Pompey's Diospolis, afterwards Neocaesarea, now Niksar; Sebastopolis on the Scylax, now Sulu Seral; Sebasteia, now Sivas; and Megalopolis, a foundation of Pompey, somewhere in the same district.

A red dragonfly, a darter, zooms around over the pond then rests in the sun on an iris leaf.

Assuming the corneal thickness = 1 unit, assess the width of the " aqueous gap " from corneal endothelium to iris.

To center the condenser close down the iris diaphragm and remove the eyepiece.

The marshy areas of these fields stand out with colorful flag iris, ragged robin and water forget-me-nots.

The term Iris in not only used to describe the genus, it is also the common name for the comprised species.

The late Iris Bancroft and the late Rex King made heirlooms available.

The colored part of the eye is called the iris - what color are your eyes?

This popular, tall bearded iris is perfect for a sunny, well-drained border.

The " stinking iris ", a rare plant, is also to be found in this area.

Other popular types include the tall, slender Siberian iris for moist, fertile soil, with flowers of blue, indigo or white.

How do I display a two-dimensional array of heights in IRIS Explorer?

The skillful use of eye shadow can certainly compliment the natural beauty of your eyes, accentuating your iris color and overall eye shape.

This action, at first sight somewhat obscure, is due to the extreme pupillary contraction which removes the mass of the iris from pressing upon the spaces of Fontana, through which the intraocular fluids normally make a very slow escape from the eye into its efferent lymphatics.

Its stimulant action on the iris and ciliary muscle is employed when they are weak or paralysed.

It is naturally the most efficient agent in relieving the discomfort or intolerable pain of photophobia; and it is the best means of breaking down adhesions of the iris, and of preventing prolapse of the iris after injuries to the cornea.

The" Vindictive,"supported by two auxiliary vessels" Iris II."and" Daffodil,"was to assault the mole on its outer and western side and by creating an impression that this was the main operation, divert the enemy's fire from the blocking ships.

The "Vindictive," which had been towing the "Iris II."

D Company was still in the "Iris II.," but the marines were forming up on the mole to make an assault.

This can be experimentally shown - by the method of exclusion - to be caused by a paralysis of the terminals of the third cranial nerve in the sphincter pupillae of the iris.

Atropine is universally and constantly used in ophthalmic practice in order to dilate the pupil for examination of the retina by the ophthalmoscope, or in cases where the inflamed iris threatens to form adhesions to neighbouring parts.

The members of this order are generally perennial herbs growing from a corm as in Crocus and Gladiolus, or a rhizome as in Iris; more rarely, as in the Spanish iris, from a bulb.

The most important genera are Crocus (q.v.), with about 70 species, Iris (q.v.), with about ioo, and Gladiolus (q.v.), with 150.

The pale is now generally considered to represent the single bracteole, characteristic of Monocotyledons, the binerved structure being the result of the pressure of the axis of the spikelet during the development of the pale, as in Iris and others.

The only physiological discovery which can be safely attributed to him is that of the contractility of the iris.

Notable among the flowers are the arum lily and the iris.

Sir David Gill derived a highly satisfactory value of 8.78" for the long-sought constant from the opposition of Mars in 1877, and from combined heliometer observations at five observatories in 1888-1889 of the minor planets Iris, Victoria and Sappho, the apparently definitive value of 8.80" (equivalent distance, 92,874,000 m.).

As a rule an iris diaphragm, which can be moved sideways, is now fitted below this condenser; below is the mirror which can be moved in all directions.

The iris diaphragm can be regulated by the lever p; it can also be turned to one side round the pivot z, so that the condenser k can be removed or changed.

The iris diaphragm i is pushed to the side by the rack and pinion t n.

It is best if the image of the light is not larger than the object examined, and to effect this, an illuminating lens with an iris diaphragm is often placed between the source of light and the illuminator.

This can be attained by drawing the iris diaphragm so far as to form the entrance pupil.

The double diaphragm is then in such a position that the edge of the outer diaphragm coincides with the edge of the iris diaphragm.

Coloured hairs are seen on the petals of Menyanthes, and on the segments of the perianth of Iris.

The anthers are called introrse when they dehisce by the surface next to the centre of the flower; they are extrorse when they dehisce by the outer surface; when they dehisce by the sides, as in Iris and some grasses, they are laterally dehiscent.

Most of the other Monocotyledons call for little remark, though among them is an Iris, a Bromelia and a ginger.

The first is the working archive of Peter Conradi, Iris Murdoch's authorized biographer.

For Peter Conradi, writer, academic, acclaimed biographer of Iris Murdoch, the moment came in 1982.

Glories can be predicted by Mie scattering calculations as used in IRIS.