| refraction |
The deflection from a straight path encountered by a photon of light, an electron, etc. in passing from one medium to another.
Ãâó: www.botanyvt.com/pages/dictionary.shtml
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| refractive index |
The speed of light in a vacuum as opposed to its speed in a medium. Also measured as the sine of the angle of bending from one medium to another.
Ãâó: www.botanyvt.com/pages/dictionary.shtml
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| refractory sprue |
A coeliac disease not responding to glutenfree diet. In a primary RS there is an initial treatment failure, and in secondary RS a subsequent failure. RS can be a sign of malignant transformation resulting in an enteropathy associated T-cell lymphoma (EATL). Ulcerative jejunoileitis iis probably the same condition as EATL.
Ãâó: www.gastrolab.net/dicter.htm
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| reflex |
Involuntary, predictable response to a particular stimulus.
Ãâó: www.dbs-stn.org/glossary4.asp
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| refractory |
Resistant to or not readily yielding to treatment.
Ãâó: www.dbs-stn.org/glossary4.asp
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