\ɹɪfɹˈakʃən], \ɹɪfɹˈakʃən], \ɹ_ɪ_f_ɹ_ˈa_k_ʃ_ə_n]\
Definitions of REFRACTION
- 2006 - WordNet 3.0
- 2011 - English Dictionary Database
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 1919 - The Winston Simplified Dictionary
- 1920 - A practical medical dictionary.
- 1898 - Warner's pocket medical dictionary of today.
- 1899 - The american dictionary of the english language.
- 1919 - The Concise Standard Dictionary of the English Language
- 1874 - Etymological and pronouncing dictionary of the English language
- 1846 - Medical lexicon: a dictionary of medical science
- 1898 - American pocket medical dictionary
- 1916 - Appleton's medical dictionary
- 1871 - The Cabinet Dictionary of the English Language
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By DataStellar Co., Ltd
By Oddity Software
By Noah Webster.
By William Dodge Lewis, Edgar Arthur Singer
1. The deflection of a ray of light when it passes from one medium into another of different density; in passing from a denser into a rarer medium it is deflected away from a line perpendicular to the surface of the refracting medium, in passing from a rarer to a denser medium it is bent toward this perpendicular line. 2. The act of determining the nature and degree of the refractive errors in the eye and correction of the same by glasses.
By Stedman, Thomas Lathrop
By William R. Warner
By Daniel Lyons
By James Champlin Fernald
The bending of a ray of light towards the perpendicular when it passes into a denser medium, as from air into water, and from the perpendicular when it passes into a rarer medium, as from water into air; in mech., the incurvation or change of determination in the body moved; in astron., the apparent angular elevation of celestial bodies above their true places, caused by the refracting power of the atmosphere; double refraction, the refraction of light in two directions, and consequent production of two distinct images.
By Stormonth, James, Phelp, P. H.
The change of direction which rays of light experience when they pass obliquely from one medium into another of different density. If the light passes from a rarer to a denser medium, it approaches the perpendicular raised at the point of immersion. The contrary occurs, when it goes from a denser to a rarer medium. The theory of lenses, telescopes, and of the eye, rests entirely on this property of light.
By Robley Dunglison
By Willam Alexander Newman Dorland
A number expressing the product of the specific refractive power of a substance by the molecular weight of the latter. This number, when calculated for the different members of an homologous series of organic compounds, is found to vary according to more or less definite rules; and, its value being determined for the elementary bodies, its value for compounds can be deduced, at least in some instances. [Lat.]
By Smith Ely Jelliffe
Word of the day
- A relatively rare smooth muscle tumor found most frequently in the wall gastrointestinal tract, especially stomach. It similar to other tumors but may become very large and hemorrhage exhibit small cystic areas. Simple excision is almost always curative. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1354)