1. having had color removed or reduced; made colorless or pale
Usage: British spelling variant of 'decolorized'

1. past tense and past participle of decolourize; to remove or reduce the color from something
Usage: British spelling variant of 'decolorized'; transitive verb

Examples

• The fabric was decolourized by prolonged exposure to sunlight.
• The chemist decolourized the solution by adding a bleaching agent.
• The decolourized sample showed no visible pigmentation.
• Years of washing had decolourized the once-bright curtains.
• The laboratory decolourized the dye using activated charcoal.
• The decolourized paint appeared almost white against the dark wall.