Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of optic is as below...

Sextant :: Sextant (n.) An instrument for measuring angular distances between objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's quadrant, but usually of metal, with a nicer graduation, telescopic sight, and its arc the sixth, and sometimes the third, part of a circle. See Quadrant..

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

Dioptrics :: Dioptrics (n.) The science of the refraction of light; that part of geometrical optics which treats of the laws of the refraction of light in passing from one medium into another, or through different mediums, as air, water, or glass, and esp. through different lenses; -- distinguished from catoptrics, which refers to reflected light..

Zoetrope :: Zoetrope (n.) An optical toy, in which figures made to revolve on the inside of a cylinder, and viewed through slits in its circumference, appear like a single figure passing through a series of natural motions as if animated or mechanically moved..

Stereoscope :: Stereopticon (n.) 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 magic lanterns for producing the effect of dissolving views..

Heteroptics :: Heteroptics (n.) False optics.

Synoptist :: Synoptic (n.) One of the first three Gospels of the New Testament. See Synoptist.

Slide :: Slide (n.) A plate or slip of glass on which is a picture or delineation to be exhibited by means of a magic lantern, stereopticon, or the like; a plate on which is an object to be examined with a microscope..

Mirage :: Mirage (n.) An optical effect, sometimes seen on the ocean, but more frequently in deserts, due to total reflection of light at the surface common to two strata of air differently heated. The reflected image is seen, commonly in an inverted position, while the real object may or may not be in sight. When the surface is horizontal, and below the eye, the appearance is that of a sheet of water in which the object is seen reflected; when the reflecting surface is above the eye, the image is seen pr

Scioptric :: Scioptric (a.) Scioptic.

Strabotomy :: Strabismus (n.) An affection of one or both eyes, in which the optic axes can not be directed to the same object, -- a defect due either to undue contraction or to undue relaxation of one or more of the muscles which move the eyeball; squinting; cross-eye..

Photology :: Photology (n.) The doctrine or science of light, explaining its nature and phenomena; optics..

Subtile :: Subthalamic (a.) Situated under the optic thalamus.

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

Field :: Field (n.) The space covered by an optical instrument at one view.

Chromascope :: Chromascope (n.) An instrument for showing the optical effects of color.

Haikal :: Haikal (n.) The central chapel of the three forming the sanctuary of a Coptic church. It contains the high altar, and is usually closed by an embroidered curtain..

Define :: Define (v. t.) To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly; as, the defining power of an optical instrument..

Coptic :: Coptic (a.) Of or pertaining to the Copts.

Sciopticon :: Sciopticon (n.) A kind of magic lantern.

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