A simple electromechanical device used to control resistance or voltage (often to adjust sound volume) in an electronic device by rotating or sliding when manipulated by a human thumb, screwdriver, etc.
To fade volume in or out by means of a potentiometer.
Origin
; both Old English and Frankish from Proto-Germanic *puttaz, from Proto-Indo-European *budnós. Cognate with Saterland Frisian Pot, Dutch pot, Low German Pott, German Pott, Swedish potta, Icelandic pottur, Old Armenian պոյտն.
The sense of ruin or deterioration was originally an allusion to being chopped up and tossed in a pot like a piece of meat. The slang term for toilets and the lavatory derives from chamberpots although now usually encountered as potty during children's toilet training.
Possibly a shortened form of Mexican Spanish potiguaya or potaguaya or potación de guaya, supposedly denoting a drink of wine or brandy in which marijuana buds were steeped.
Modern English dictionary
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