Not containing, requiring, or using electrodes; describing a system or device that operates without electrodes.
From 'electrode' + '-less' (without). A descriptive term that emerged in the mid-1900s as scientists developed alternative technologies that didn't need traditional electrodes.
Electrodeless lamps use electrical energy to make gases glow without electrodes touching them—it's like magical light! They last much longer because there's nothing to burn out, which is why they're used in places like street lamps and stadium lights.
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