Definition of optic

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Optic (a.) Alt. of Optica.

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Scoptic :: Scoptic (a.) Alt. of Scoptica.
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..
Chromatrope :: Chromatrope (n.) A device in a magic lantern or stereopticon to produce kaleidoscopic effects.
Ganoidei :: Ganoidei (n. pl.) One of the subclasses of fishes. They have an arterial cone and bulb, spiral intestinal valve, and the optic nerves united by a chiasma. Many of the species are covered with bony plates, or with ganoid scales; others have cycloid scales..
Strockle :: Stroboscope (n.) An optical toy similar to the phenakistoscope. See Phenakistoscope.
Entoptic :: Entoptic (a.) Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye..
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..
Perspective :: Perspective (n.) Of or pertaining to the science of vision; optical.
Ocular :: Ocular (n.) The eyepiece of an optical instrument, as of a telescope or microscope..
Panopticon :: Panopticon (n.) A prison so contructed that the inspector can see each of the prisoners at all times, without being seen..
Phantasmagoria :: Phantasmagoria (n.) An optical effect produced by a magic lantern. The figures are painted in transparent colors, and all the rest of the glass is opaque black. The screen is between the spectators and the instrument, and the figures are often made to appear as in motion, or to merge into one another..
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..
Phantasm :: Phantasm (n.) An image formed by the mind, and supposed to be real or material; a shadowy or airy appearance; sometimes, an optical illusion; a phantom; a dream..
Bisectrix :: Bisectrix (n.) The line bisecting the angle between the optic axes of a biaxial crystal.
Autoptical :: Autoptical (a.) Seen with one's own eyes; belonging to, or connected with, personal observation; as, autoptic testimony or experience..
Synoptical :: Synoptic (a.) Alt. of Synoptica.
Chromatics :: Chromatics (n.) The science of colors; that part of optics which treats of the properties of colors.
Eyepiece :: Eyepiece (n.) The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed..
Phoneidoscope :: Phoneidoscope (n.) An instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film of soap solution thin enough to give colored bands, the form and position of which are affected by sonorous vibrations..
Optical :: Optical (a.) Of or pertaining to vision or sight.
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