A substance or agent that removes color; a bleaching or whitening agent used to remove pigmentation.
From de- (remove) + colorant (something that colors). A chemical or practical term for any substance that causes decoloration.
Hydrogen peroxide is a gentle decolorant used by hairdressers and in laundry, while chlorine bleach is a stronger decolorant used for sanitizing—same principle, vastly different safety profiles.
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