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optical isomerism

noun, Chemistry.
stereoisomerism in which the isomers are identical in molecular weight and most chemical and physical properties but differ in their effect on the rotation of polarized light.
Origin of optical isomerism
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 isomerism

optical isomerism

isomerism of chemical compounds in which the two isomers differ only in that their molecules are mirror images of each other See also dextrorotation, laevorotatory, racemize
Derived Forms
optical isomer, noun
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 isomerism in Medicine

optical isomerism n.
Stereoisomerism involving the arrangement of substituents about an asymmetric carbon atom or atoms so that the various isomers differ in how they rotate a plane of polarized light.

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