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hydrogen electrode

noun

a standard reference electrode with a potential of zero, used in pH measurements, consisting of a platinum-black surface covered with hydrogen bubbles.

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You may have read the word "simmer" in a recipe or two, but what does it really mean?
To cook in water that begins cold and then reaches a boil.
To stew in a sauce for a long time.
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Origin of hydrogen electrode

First recorded in 1895–1900

Words nearby hydrogen electrode

hydrogen bromide, hydrogen carbonate, hydrogen chloride, hydrogen cyanide, hydrogen donor, hydrogen electrode, hydrogen embrittlement, hydrogen fluoride, hydrogen iodide, hydrogen ion, hydrogenize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020