IPA: //ˌreɪsəˈmaɪzeɪʃən//
KK: /ˌreɪsəˈmaɪzeɪʃən/
The process of converting a substance that has optical activity into a mixture that contains equal amounts of its two mirror-image forms.
The racemization of the compound resulted in a mixture that was no longer optically active.
Racemization → It is formed from "racemus" (from Latin, meaning a bunch or cluster, especially of grapes) and the suffix "-ization" (meaning the process of making or becoming). The word "racemization" refers to the process of converting a compound into a racemic mixture, which is a mixture containing equal amounts of left- and right-handed enantiomers.
Think of a 'bunch' ('racemus') of grapes being mixed together in a process ('-ization') — that's what racemization means.