hydrogen electrode

American  

noun

1. 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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Etymology

Origin of hydrogen electrode

First recorded in 1895–1900

Example Sentences

Second, the plate so covered becomes in effect a hydrogen electrode, and hydrogen stands high as an electro-positive element.

From Project Gutenberg

The values given below are those required for deposition from normal solutions at ordinary temperatures with reference to a hydrogen electrode.

From Project Gutenberg