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Either of a pair of molecules that are mirror images but cannot be superimposed on each other, and that rotate the plane of polarized light by an equal amount in opposite directions. Also called enantiomorph, optical isomer.

[Greek enantios, opposite; see ant- in Indo-European roots + -mer, isomer.]

en·an′ti·o·mer′ic (-mĕr′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chem a molecule that exhibits stereoisomerism because of the presence of one or more chiral centres
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ɪˈnæn ti ə mər)

either of a pair of optical isomers that are mirror images of each other.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.enantiomer - either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Nakagawa, Capillary electrophoresis/frontal analysis for microanalysis of enantioselective protein binding of a basic drug.
Alpha-biphenylsulfonylamino 2-methylpropyl phosphonates: Enantioselective synthesis and selective inhibition of MMPs.
4B, may be influenced by the sampling site, enantioselective biodegradation of microorganisms, and other parameters such as pH and oxidation processes in the matrix [15].
Enantioselective effects of hydroxy metabolites of bupropion on behavior and on function of monoamine transporters and nicotinic receptors.
Shi, "The Morita-Baylis-Hillman (MBH) and Hetero-MBH Reactions," Comprehensive Enantioselective Organocatalysis: Catalysts, Reactions, and Applications, vol.
Togni, "Enantioselective 1,3-dipolar cycloaddition of C,N-cyclic azomethine imines to unsaturated nitriles catalyzed by Nin-Pigiphos," Journal of Organic Chemistry, vol.
Sun, "Optimization of lipase-catalyzed enantioselective esterification of ([+ or -])-menthol in ionic liquid," Food Chemistry, vol.
Yang, "Enantioselective total synthesis of (-)-Alstoscholarisine A," Journal of the American Chemical Society, vol.
A homochiral metal-organic porous materials for enantioselective separation and catalysis.
Preparation of JHs was a prosperous area of organic synthesis, and culminated in the enantioselective synthesis of JH I and others.
Pericas, "Continuous flow, highly enantioselective Michael additions catalyzed by a PS-supported squaramide," Organic Letters, vol.