water rheostat

noun

Definition of water rheostat

: a rheostat used for dissipating large amounts of electrical energy and made of a vessel (as a tank) that contains water often with added sodium carbonate and usually has one fixed electrode and one movable electrode

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“Water rheostat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20rheostat. Accessed 5 Aug. 2021.

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