1. the process or result of removing color from something; the act of making something colorless or less colored
Usage: also spelled decolourization in British English; commonly used in chemistry and industrial contexts

Examples

• The decolorization of the fabric occurred after repeated washing in harsh detergent.
• Activated charcoal is used in water treatment for the decolorization of impurities.
• The decolorization of the dye indicated that the chemical reaction was complete.
• Sunlight can cause gradual decolorization of outdoor paint.
• The laboratory technician monitored the decolorization process during the experiment.