NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,847 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

gel electrode
(jel ee-LEK-trode)
A device that uses a gel to carry an electric current from the skin to a measuring instrument. A sticky patch may hold the gel electrode on the skin so that the electrical activity of the heart or brain can be measured.