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ra·ce·mic(rā-sē′mĭk, -sĕm′ĭk, rə-)
Of or relating to a chemical mixture that contains equal quantities of dextrorotatory and levorotatory forms of a compound and therefore does not rotate the plane of incident polarized light.
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.
racemic(rəˈsiːmɪk; -ˈsɛm-) or
(Chemistry) chem of, concerned with, or being a mixture of equal amounts of enantiomers and consequently having no optical activity
[C19: from raceme (as in racemic acid) + -ic]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ra•ce•mic(reɪˈsi mɪk, -ˈsɛm ɪk, rə-)
noting or pertaining to any of various organic compounds that are optically inactive but separable into dextrorotatory and levorotatory forms.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.