NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 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.

electromagnetic field
(ee-LEK-troh-mag-NEH-tik feeld)
An area of electric and magnetic forces caused by electromagnetic radiation. Researchers are studying whether the electromagnetic fields from power lines, electrical appliances, and wireless and cellular telephones can cause cancer or other harmful health effects. Also called EMF.