NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,926 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.

lobectomy
(loh-BEK-toh-mee)
Surgery to remove a whole lobe (section) of an organ (such as the lungs, liver, brain, or thyroid gland).