"Refraction" is a word in ENGLISH
The act of refracting, or the state of being refracted.
The correction which is to be deducted from the
apparent altitude of a heavenly body on account of atmospheric
refraction, in order to obtain the true altitude.
The change in the direction of a ray of light, and,
consequently, in the apparent position of a heavenly body from which it
emanates, arising from its passage through the earth's atmosphere; --
hence distinguished as atmospheric refraction, or astronomical
refraction.
The change in the direction of ray of light, heat, or
the like, when it enters obliquely a medium of a different density from
that through which it has previously moved.
How lucky country children are in these natural delights that lie ready to their hand! Every season and every plant offers changing joys. As they meander along the lane that leads to our school all kinds of natural toys present themselves for their diversion. The seedpods of stitchwort hang ready for delightful popping between thumb and finger, and later the bladder campion offers a larger, if less crisp, globe to burst. In the autumn, acorns, beechnuts, and conkers bedizen their path, with all their manifold possibilities of fun. In the summer, there is an assortment of honeys to be sucked from bindweed flowers, held fragile and fragrant to hungry lips, and the tiny funnels of honeysuckle and clover blossoms to taste.
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Any abnormal condition of the refracting powers of the eye.
Read the complete definitionProduced by the refraction of light, as seen through water; as, anaclastic curves.
Read the complete definitionThat part of optics which treats of the refraction of light; -- commonly called dioptrics.
Read the complete definitionAn anomalous state of refraction caused by the absence of the crystalline lens, as after operations for cataract. The remedy …
Read the complete definitionThe quantity on which another quantity in a table depends; as, the altitude is the argument of the refraction.
Read the complete definitionOne of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the …
Read the complete definitionA diamond or other gem of the finest cut, formed into faces and facets, so as to reflect and refract …
Read the complete definitionPertaining to, produced by, or involving, both the reflection and refraction of light; as, a catadioptric light.
Read the complete definitionPertaining to, or possessing the properties of, a species of caustic curves formed by refraction. See Caustic surface, under Caustic.
Read the complete definitionThat which burns by refraction, as a double convex lens, or the sun's rays concentrated by such a lens, sometimes …
Read the complete definitionA curved formed by the consecutive intersections of rays of light refracted through a lens.
Read the complete definitionPertaining to the science or doctrine of refracted sounds.
Read the complete definitionThe doctrine of refracted sound; diacoustics.
Read the complete definitionA unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of …
Read the complete definitionOf or pertaining to dioptrics; assisting vision by means of the refraction of light; refractive; as, the dioptric system; a …
Read the complete definitionThe science of the refraction of light; that part of geometrical optics which treats of the laws of the refraction …
Read the complete definitionOne of a species of coccoliths, having an oval discoidal body, with a thick strongly refracting rim, and a thinner …
Read the complete definitionOne of the dark particles forming the doubly refracting disks of muscle fibers.
Read the complete definitionThat refractive condition of the eye in which the rays of light are all brought accurately and without undue effort …
Read the complete definitionDimness or abolition of sight, with a diminution of transparency, a bluish or greenish tinge of the refracting media of …
Read the complete definition