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...

Periscope :: Periscope (n.) an optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water..

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..

Flint Glass :: Flint glass () A soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. Called also crystal glass. Cf. Glass..

Optician :: Optician (a.) One skilled in optics.

Anisotropic :: Anisotropic (a.) Not isotropic; having different properties in different directions; thus, crystals of the isometric system are optically isotropic, but all other crystals are anisotropic..

Optical :: Optical (a.) Relating to the science of optics; as, optical works..

Glass :: Glass (v. t.) An optical glass; a lens; a spyglass; -- in the plural, spectacles; as, a pair of glasses; he wears glasses..

Phantascope :: Phantascope (n.) An optical instrument or toy, resembling the phenakistoscope, and illustrating the same principle; -- called also phantasmascope..

Pebble :: Pebble (n.) Transparent and colorless rock crystal; as, Brazilian pebble; -- so called by opticians..

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..

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

Chromatrope :: Chromatrope (n.) A device in a magic lantern or stereopticon to produce kaleidoscopic effects.

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..

Staurotide :: Stauroscope (n.) An optical instrument used in determining the position of the planes of light-vibration in sections of crystals.

Heteroptics :: Heteroptics (n.) False optics.

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.

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..

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

Synosteology :: Synoptist (n.) Any one of the authors of the three synoptic Gospels, which give a history of our Lord's life and ministry, in distinction from the writer of John's Gospel, which gives a fuller record of his teachings..

Inactive :: Inactive (a.) Not active; inert; esp., not exhibiting any action or activity on polarized light; optically neutral; -- said of isomeric forms of certain substances, in distinction from other forms which are optically active; as, racemic acid is an inactive tartaric acid..

Random Fonts

Most Popular