- Either of a pair of crystals, molecules, or compounds that are mirror images of each other but are not identical, and that rotate the plane of polarized light equally, but in opposite directions. Also called enantiomer, optical isomer.
[Greek enantios, opposite; see ant- in Indo-European roots + -morph.]
en·anti·o·morphic, en·anti·o·morphous adj. en·anti·o·morphism n.
Source: The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.