in·ter·rup·tor /ˌɪntəˈrʌptɚ/
In·ter·rupt·er n.
1. One who, or that which, interrupts.
2. Elec. A device for opening and closing an electrical circuit; a vibrating spring or tuning fork, arranged to make and break a circuit at rapidly recurring intervals, by the action of the current itself. [Also spelled interruptor.]
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