Meaning of racemization

rac•e•mi•za•tion

Pronunciation: (ras"u-mu-zā'shun, rā-sē'mu-), [key]
— n. Chem.
  1. the conversion of an optically active substance into an optically inactive mixture of equal amounts of the dextrorotatory and levorotatory forms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.