chiral

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chi·ral / ˈkīrəl/ • adj. Chem. asymmetric in such a way that the structure and its mirror image are not superimposable. Chiral compounds are typically optically active; large organic molecules often have one or morechiral centers where four different groups are attached to a carbon atom.DERIVATIVES: chi·ral·i·ty / kīˈralitē/ n.