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.

Refractory :: Refractory (n.) Refractoriness.

Bulldog :: Bulldog (n.) A refractory material used as a furnace lining, obtained by calcining the cinder or slag from the puddling furnace of a rolling mill..

Diacaustic :: Diacaustic (a.) Pertaining to, or possessing the properties of, a species of caustic curves formed by refraction. See Caustic surface, under Caustic..

Refringent :: Refringent (a.) Pertaining to, or possessing, refringency; refractive; refracting; as, a refringent prism of spar..

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..

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.

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..

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

Restive :: Restive (a.) Impatient under coercion, chastisement, or opposition; refractory..

Polarizer :: Polarizer (n.) That which polarizes; especially, the part of a polariscope which receives and polarizes the light. It is usually a reflecting plate, or a plate of some crystal, as tourmaline, or a doubly refracting crystal..

Retrofracted :: Retrofracted (a.) Refracted; as, a retrofract stem..

Refractory :: Refractory (a.) Obstinate in disobedience; contumacious; stubborn; unmanageable; as, a refractory child; a refractory beast..

Gentle :: Gentle (superl.) Not wild, turbulent, or refractory; quiet and docile; tame; peaceable; as, a gentle horse..

Disobedient :: Disobedient (a.) Neglecting or refusing to obey; omitting to do what is commanded, or doing what is prohibited; refractory; not observant of duty or rules prescribed by authority; -- applied to persons and acts..

Blue :: Blue (n.) One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a color resembling that, whether lighter or darker; a pigment having such color. Sometimes, poetically, the sky..

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..

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

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..

Rainbow :: Rainbow (n.) A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain..