To treat something with chlorine or introduce chlorine into a substance, often for disinfection or chemical modification purposes.
From 'chlorine' + '-ize' (verb-forming suffix). Chlorine itself comes from Greek 'chloros' (green), named for the gas's distinctive color when pure chemists first isolated it.
When you chlorinize a swimming pool, you're actually creating a complex mix of chlorine compounds and hypochlorous acid—the smell isn't pure chlorine, it's the byproducts of chlorine reacting with organic matter in the water.
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