NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,176 terms related to cancer and medicine.

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4-nitroquinoline 1-oxide
(4-NY-troh-KWIH-noh-leen 1-OK-side)
A substance that is used in cancer research to cause tumors in laboratory animals. This is done to test new diets, drugs, and procedures for use in cancer prevention and treatment. Also called 4-NQO.