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The organ of sight; an eye. The difference is as great between The optics seeing, as the object seen. Pope.

Of or pertaining to vision or sight. The moon, whose orb Through optic glass the Tuscan artist views. Milton.

By optics or sight; with reference to optics. Optically active, Optically inactive (Chem. Physics), terms used of certain metameric substances which, while identical with each other in other respects, differ in this, viz., that they do or do not produce right-handed or left-handed circular polarization of light. -- Op…

One skilled in optics. [R.] A. Smith.

That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision.

Seen with one's own eyes; belonging to, or connected with, personal observation; as, autoptic testimony or experience.

By means of ocular view, or one's own observation. Sir T. Browne.

See Projector, below.

Of or pertaining to the Copts. -- n.

pe and patriarch" has jurisdiction over the Abyssinian Church. Since the 7th century the Coptic Church has been so isolated from modifying influences that in many respects it is the most ancient monument of primitive Christian rites and ceremonies. But centuries of subjection to Moslem rule have weakened and degraded i…

Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye.

False optics. Spectator.

An optical glass that is convex on both sides. [Obs.] Hutton.

A prison so contructed that the inspector can see each of the prisoners at all times, without being seen.

See Projector, above.

Of or pertaining to an optical arrangement for forming images in a darkened room, usually called scioptic ball. Scioptic ball (Opt.), the lens of a camera obscura mounted in a wooden ball which fits a socket in a window shutter so as to be readily turned, like the eye, to different parts of the landscape.…

A kind of magic lantorn.

The art or process of exhibiting luminous images, especially those of external objects, in a darkened room, by arrangements of lenses or mirrors.

Jesting; jeering; scoffing. [Obs.] South. -- Scop"tic*al*ly, adv. [Obs.]

An instrument, consisting essentially of a magic lantern in which photographic pictures are used, by which the image of a landscape, or any object, may be thrown upon a screen in such a manner as to seem to stand out in relief, so as to form a striking and accurate representation of the object itself; also, a pair of m…