A device, machine, or apparatus that applies or introduces chlorine into water or other substances for disinfection and purification.
From chlorinate + the agent suffix -or (or -er), meaning 'one that does' or 'a device that performs.' This follows English patterns for naming machines that carry out specific functions.
Modern chlorinators in water treatment plants are sophisticated automated systems that adjust chlorine levels in real-time—they're essentially chemical robots keeping your water safe 24/7.
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