NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,106 terms related to cancer and medicine.

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aromatase inhibitor
(uh-ROH-muh-tays in-HIH-bih-ter)
A drug that prevents the formation of estradiol, a female hormone, by interfering with an aromatase enzyme. Aromatase inhibitors are used as a type of hormone therapy for postmenopausal women who have hormone-dependent breast cancer.