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Having all or many degrees of power; having a great range of power; -- said of an eyepiece made adjustable so as to give a varying magnifying power.

A very vascular superficial opacity of the cornea, usually caused by granulation of the eyelids. Foster.

Literally, seeing everything; -- a term applied to eyeglasses or spectacles divided into two segments, the upper being designed for distant vision, the lower for vision of near objects.

ular parallax, the apparent difference in position of an object as seen separately by one eye, and then by the other, the head remaining unmoved. -- Diurnal, or Geocentric, parallax, the parallax of a body with reference to the earth's center. This is the kind of parallax that is generally understood when the term is…

With the lower focal points all in the same plane; -- said of sets of eyepieces so mounted that they may be interchanged without varying the focus of the instrument (as a microscope or telescope) with which they are used.

smoothly, etc.; to pass to the rear, under the yoke, over the bridge, across the field, beyond the border, etc. "But now pass over [i.e., pass on]." Chaucer. On high behests his angels to and fro Passed frequent. Milton. Sweet sounds rose slowly through their mouths, And from their bodies passed. Coleridge.…

an to be pathetic. E. Porter. Pathetic muscle (Anat.), the superior oblique muscle of the eye. -- Pathetic nerve (Anat.), the fourth cranial, or trochlear, nerve, which supplies the superior oblique, or pathetic, muscle of the eye. -- The pathetic, a style or manner adapted to arouse the tender emotions.…

ng the parts loose or dispersed; as, a patulous calyx; a patulous cluster of flowers. The eyes are large and patulous. Sir J. Hill.

A whitish speck or film on the eye. [Obs.] Milton.

Having a pearly speck in the eye; afflicted with the cataract.

A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; -- also called marsupium.

Having a peduncle; growing on a peduncle; as, a pedunculate flower; a pedunculate eye, as in a lobster.

To look slyly, or with the eyes half closed, or through a crevice; to peep. [Colloq.]

The eye; as, to close the peepers. [Colloq.]

Inquisitive; suspicious; sharp. [Prov. Eng. & Scot.] "Two peery gray eyes." Sir W. Scott.

Acute; discerning; sagacious; as, penetrative wisdom. "The penetrative eye." Wordsworth. Led on by skill of penetrative soul. Grainger.

r building, as over a door or window; a lean-to. Also figuratively. "The penthouse of his eyes." Sir W. Scott.

u may, fair lady, Perceive I speak sincerely. Shak. Till we ourselves see it with our own eyes, and perceive it by our own understandings, we are still in the dark. Locke.

Of or pertaining to the perimeter, or to perimetry; as, a perimetric chart of the eye.

nvex or convexo-concave lenses with a considerable curvature corresponding to that of the eye, to increase the distinctness of objects viewed obliquely.