noun
electric bath; denkiburo
A bath with a mild electric current, historically claimed to have health benefits. Often found in traditional public baths or hot spring facilities.
昔ながらの銭湯には、電気風呂が残っているところもある。
Some old-fashioned public baths still have an electric bath.
電気風呂は、微弱な電流で肩こりに効くと言われている
The electric bath is said to help with stiff shoulders through a weak electric current.
Compound of 電気 (electricity) and 風呂 (bath). The exact origin of the practice is uncertain, but it became known in Japan in the early 20th century as a health device.