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optical rotation

noun, Physical Chemistry.
the angle at which the plane of polarized light is rotated when passed through an optically active substance.
Origin of optical rotation
First recorded in 1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for optical rotation

optical rotation

the angle through which plane-polarized light is rotated in its passage through a substance exhibiting optical activity
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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optical rotation in Medicine

optical rotation n.
The change or rotation in the plane of polarization that occurs when polarized light is passed through an optically active substance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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