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...

Asterism :: Asterism (n.) An optical property of some crystals which exhibit a star-shaped by reflected light, as star sapphire, or by transmitted light, as some mica..

Autoptic :: Autoptic (a.) Alt. of Autoptica.

Lens :: Lens (n.) A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure..

Power :: Power (n.) The degree to which a lens, mirror, or any optical instrument, magnifies; in the telescope, and usually in the microscope, the number of times it multiplies, or augments, the apparent diameter of an object; sometimes, in microscopes, the number of times it multiplies the apparent surface..

Chromatics :: Chromatics (n.) The science of colors; that part of optics which treats of the properties of colors.

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..

Perspicil :: Perspicil (n.) An optical glass; a telescope.

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

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..

Perspective :: Perspective (n.) Of or pertaining to the science of vision; optical.

Illuminator :: Illuminator (v. t.) A condenser or reflector of light in optical apparatus; also, an illuminant..

Panopticon :: Panopticon (n.) A room for the exhibition of novelties.

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

Entoptic :: Entoptic (a.) Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye..

Scoptical :: Scoptical (a.) Jesting; jeering; scoffing.

Photics :: Photics (n.) The science of light; -- a general term sometimes employed when optics is restricted to light as a producing vision.

Squint :: Squint (v. t.) To cause to look with noncoincident optic axes.

Optocoelia :: Optocoelia (n.) The cavity of one of the optic lobes of the brain in many animals.

Coptic :: Coptic (n.) The language of the Copts.

Megalethoscope :: Megalethoscope (n.) An optical apparatus in which pictures are viewed through a large lens with stereoptical effects. It is often combined with the stereoscope.

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