English definition of Refract

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Definition of refract

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Refract (n.) To break the natural course of, as rays of light orr heat, when passing from one transparent medium to another of different density; to cause to deviate from a direct course by an action distinct from reflection; as, a dense medium refrcts the rays of light as they pass into it from a rare medium..

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Ametropia :: Ametropia (n.) Any abnormal condition of the refracting powers of the eye.

Glaucoma :: Glaucoma (n.) Dimness or abolition of sight, with a diminution of transparency, a bluish or greenish tinge of the refracting media of the eye, and a hard inelastic condition of the eyeball, with marked increase of tension within the eyeball..

Refractiveness :: Refractiveness (n.) The quality or condition of being refractive.

Refracted :: Refracted (imp. & p. p.) of Refrac.

Intractable :: Intractable (a.) Not tractable; not easily governed, managed, or directed; indisposed to be taught, disciplined, or tamed; violent; stubborn; obstinate; refractory; as, an intractable child..

Dioptre :: Dioptre (n.) A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.

Neurine :: Neurine (n.) A poisonous organic base (a ptomaine) formed in the decomposition of protagon with boiling baryta water, and in the putrefraction of proteid matter. It was for a long time considered identical with choline, a crystalline body originally obtained from bile. Chemically, however, choline is oxyethyl-trimethyl-ammonium hydroxide, while neurine is vinyl-trimethyl-ammonium hydroxide..

Dioptrical :: Dioptrical (a.) Of or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a dioptric glass or telescope..

Turbulent :: Turbulent (a.) Disposed to insubordination and disorder; restless; unquiet; refractory; as, turbulent spirits..

Diacaustic :: Diacaustic (n.) That which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes used as a cautery..

Refractory :: Refractory (n.) Refractoriness.

Aphakia :: Aphakia (n.) An anomalous state of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy is the use of powerful convex lenses..

Haggard :: Haggard (a.) Wild or intractable; disposed to break away from duty; untamed; as, a haggard or refractory hawk..

Refringency :: Refringency (n.) The power possessed by a substance to refract a ray; as, different substances have different refringencies..

Paste :: Paste (n.) A highly refractive vitreous composition, variously colored, used in making imitations of precious stones or gems. See Strass..

Refractable :: Refractable (a.) Capable of being refracted.

Refractometer :: Refractometer (n.) A contrivance for exhibiting and measuring the refraction of light.

Spectrum :: Spectrum (n.) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope..

Argument :: Argument (n.) The quantity on which another quantity in a table depends; as, the altitude is the argument of the refraction..

Catadioptrical :: Catadioptrical (a.) Pertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light..