ordinary ray


noun

Optics, Crystallography. the part of a doubly refracted ray whose velocity within a crystal is the same in any direction.

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British Dictionary definitions for ordinary ray

ordinary ray

noun

the plane-polarized ray of light that obeys the laws of refraction in a doubly-refracting crystalCompare double refraction, extraordinary 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