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extraordinary ray

noun, Optics, Crystallography
1.
the part of a doubly refracted ray that has changed speed and vibrations in the principal plane of the crystal.
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for extraordinary ray
  • The ordinary ray's polarization is perpendicular to the axis of the crystal, and the extraordinary ray's polarization is parallel.
British Dictionary definitions for extraordinary ray

extraordinary ray

noun
1.
(optics) the plane-polarized ray of light that does not obey the laws of refraction in a doubly refracting crystal Compare double refraction, ordinary ray
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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24
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